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1011230101112 = 2371139718772203
BaseRepresentation
bin11101011011100100000…
…00101100111001111000
310120200011100211200002212
432231302000230321320
5113031444401213422
62052315214314252
7133026140015420
oct16556200547170
93520140750085
101011230101112
1135a9510360a0
12143b96ab8988
1374487a8949a
1436d2dad3480
151b4876089e2
hexeb7202ce78

1011230101112 has 128 divisors (see below), whose sum is σ = 2372207869440. Its totient is φ = 392605678080.

The previous prime is 1011230101111. The next prime is 1011230101117. The reversal of 1011230101112 is 2111010321101.

1011230101112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011230101111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459023003 + ... + 459025205.

It is an arithmetic number, because the mean of its divisors is an integer number (18532873980).

Almost surely, 21011230101112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011230101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186103934720).

1011230101112 is an abundant number, since it is smaller than the sum of its proper divisors (1360977768328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011230101112 is a wasteful number, since it uses less digits than its factorization.

1011230101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501 (or 4497 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1011230101112 its reverse (2111010321101), we get a palindrome (3122240422213).

The spelling of 1011230101112 in words is "one trillion, eleven billion, two hundred thirty million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 397 616 794 1588 1877 2203 2779 3176 3754 4367 4406 5558 7508 8734 8812 11116 13139 15016 15421 17468 17624 20647 22232 24233 26278 30569 30842 34936 41294 48466 52556 61138 61684 82588 96932 105112 122276 123368 144529 165176 169631 193864 244552 289058 339262 578116 678524 745169 874591 1156232 1357048 1490338 1749182 2980676 3498364 4135031 5216183 5961352 6122137 6996728 8196859 8270062 9620501 10432366 12244274 16393718 16540124 19241002 20864732 24488548 28945217 32787436 33080248 38482004 41729464 45485341 48977096 57378013 57890434 65574872 67343507 76964008 90970682 114756026 115780868 134687014 181941364 229512052 231561736 269374028 318397387 363882728 459024104 538748056 636794774 1273589548 1641607307 2547179096 3283214614 6566429228 11491251149 13132858456 18057680377 22982502298 36115360754 45965004596 72230721508 91930009192 126403762639 144461443016 252807525278 505615050556 1011230101112