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2103101220231 = 321147683661769
BaseRepresentation
bin11110100110101010100…
…110011110010110000111
321110001110201222111121100
4132212222212132112013
5233424122403021411
64250052405551143
7304641544262664
oct36465246362607
97401421874540
102103101220231
11740a138a1610
1229b7184154b3
1312342470836b
1473b0d744a6b
1539a8e602456
hex1e9aa99e587

2103101220231 has 48 divisors (see below), whose sum is σ = 3389448291840. Its totient is φ = 1245659141760.

The previous prime is 2103101220113. The next prime is 2103101220281. The reversal of 2103101220231 is 1320221013012.

2103101220231 is a `hidden beast` number, since 2 + 1 + 0 + 310 + 122 + 0 + 231 = 666.

It is not a de Polignac number, because 2103101220231 - 221 = 2103099123079 is a prime.

It is a super-2 number, since 2×21031012202312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103101220281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2847115 + ... + 3508883.

It is an arithmetic number, because the mean of its divisors is an integer number (70613506080).

Almost surely, 22103101220231 is an apocalyptic number.

2103101220231 is a deficient number, since it is larger than the sum of its proper divisors (1286347071609).

2103101220231 is a wasteful number, since it uses less digits than its factorization.

2103101220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662516 (or 662513 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2103101220231 its reverse (1320221013012), we get a palindrome (3423322233243).

The spelling of 2103101220231 in words is "two trillion, one hundred three billion, one hundred one million, two hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 9 11 33 47 99 141 423 517 683 1551 2049 4653 6147 7513 22539 32101 67617 96303 288909 353111 661769 1059333 1985307 3177999 5955921 7279459 21838377 31103143 65515131 93309429 279928287 342134573 451988227 1026403719 1355964681 3079211157 4067894043 4971870497 14915611491 21243446669 44746834473 63730340007 191191020021 233677913359 701033740077 2103101220231