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231011302310113 = 13172104535882353
BaseRepresentation
bin110100100001101010000010…
…100111010000000011100001
31010021221110112212001002021211
4310201222002213100003201
5220234342121342410423
62135153043250550121
766442005265556353
oct6441520247200341
91107843485032254
10231011302310113
116767538577a156
1221aab655898341
139bb937041a710
1441090144dd0d3
151ba920298710d
hexd21a829d00e1

231011302310113 has 24 divisors (see below), whose sum is σ = 264301765221368. Its totient is φ = 200678367891456.

The previous prime is 231011302310069. The next prime is 231011302310183. The reversal of 231011302310113 is 311013203110132.

It can be written as a sum of positive squares in 12 ways, for example, as 7358589379584 + 223652712930529 = 2712672^2 + 14955023^2 .

It is not a de Polignac number, because 231011302310113 - 213 = 231011302301921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231011302310183) 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, 36330745 + ... + 42213097.

Almost surely, 2231011302310113 is an apocalyptic number.

It is an amenable number.

231011302310113 is a deficient number, since it is larger than the sum of its proper divisors (33290462911255).

231011302310113 is a wasteful number, since it uses less digits than its factorization.

231011302310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892853 (or 5892836 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 231011302310113 its reverse (311013203110132), we get a palindrome (542024505420245).

The spelling of 231011302310113 in words is "two hundred thirty-one trillion, eleven billion, three hundred two million, three hundred ten thousand, one hundred thirteen".

Divisors: 1 13 17 221 289 3757 10453 135889 177701 2310113 3020917 5882353 39271921 76470589 100000001 1300000013 1700000017 22100000221 61488235909 799347066817 1045300010453 13588900135889 17770100177701 231011302310113