113531511313 has 6 divisors (see below), whose sum is σ = 124790834882. Its totient is φ = 103210464720.

The previous prime is 113531511307. The next prime is 113531511361. The reversal of 113531511313 is 313115135311.

It can be written as a sum of positive squares in only one way, i.e., 94403791504 + 19127719809 = 307252^2 + 138303^2 .

It is a de Polignac number, because none of the positive numbers 2^k-113531511313 is a prime.

It is a super-3 number, since 3×113531511313³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113531511113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469138356 + ... + 469138597.

Almost surely, 2^113531511313 is an apocalyptic number.

It is an amenable number.

113531511313 is a deficient number, since it is larger than the sum of its proper divisors (11259323569).

113531511313 is an equidigital number, since it uses as much as digits as its factorization.

113531511313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938276975 (or 938276964 counting only the distinct ones).

The product of its digits is 2025, while the sum is 28.

Adding to 113531511313 its reverse (313115135311), we get a palindrome (426646646624).

The spelling of 113531511313 in words is "one hundred thirteen billion, five hundred thirty-one million, five hundred eleven thousand, three hundred thirteen".