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231012233231133 = 3172695938288561
BaseRepresentation
bin110100100001101010111010…
…000110011011101100011101
31010021221112221201201202212010
4310201222322012123230131
5220234401023201344013
62135153315503501433
766442040331350664
oct6441527206335435
91107845851652763
10231012233231133
1167675813200972
1221aab8755b7879
139bb948b24c363
1441090a1dc7ddb
151ba92595707c3
hexd21aba19bb1d

231012233231133 has 24 divisors (see below), whose sum is σ = 327247744786560. Its totient is φ = 144928019461120.

The previous prime is 231012233231119. The next prime is 231012233231141. The reversal of 231012233231133 is 331132332210132.

It is not a de Polignac number, because 231012233231133 - 29 = 231012233230621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231012233231133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231012233231833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13110828 + ... + 25177733.

It is an arithmetic number, because the mean of its divisors is an integer number (13635322699440).

Almost surely, 2231012233231133 is an apocalyptic number.

It is an amenable number.

231012233231133 is a deficient number, since it is larger than the sum of its proper divisors (96235511555427).

231012233231133 is a wasteful number, since it uses less digits than its factorization.

231012233231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38295557 (or 38295540 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 231012233231133 its reverse (331132332210132), we get a palindrome (562144565441265).

The spelling of 231012233231133 in words is "two hundred thirty-one trillion, twelve billion, two hundred thirty-three million, two hundred thirty-one thousand, one hundred thirty-three".

Divisors: 1 3 17 51 289 867 6959 20877 118303 354909 2011151 6033453 38288561 114865683 650905537 1952716611 11065394129 33196182387 266450095999 799350287997 4529651631983 13588954895949 77004077743711 231012233231133