113253431031 has 24 divisors (see below), whose sum is σ = 176480640336. Its totient is φ = 69572321280.

The previous prime is 113253431021. The next prime is 113253431047. The reversal of 113253431031 is 130134352311.

113253431031 is a `hidden beast` number, since 113 + 2 + 534 + 3 + 10 + 3 + 1 = 666.

It is not a de Polignac number, because 113253431031 - 2²⁷ = 113119213303 is a prime.

It is a super-2 number, since 2×113253431031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113253430986 and 113253431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113253431021) 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, 780810 + ... + 914423.

It is an arithmetic number, because the mean of its divisors is an integer number (7353360014).

Almost surely, 2^113253431031 is an apocalyptic number.

113253431031 is a deficient number, since it is larger than the sum of its proper divisors (63227209305).

113253431031 is a wasteful number, since it uses less digits than its factorization.

113253431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695823 (or 1695820 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 113253431031 its reverse (130134352311), we get a palindrome (243387783342).

The spelling of 113253431031 in words is "one hundred thirteen billion, two hundred fifty-three million, four hundred thirty-one thousand, thirty-one".