113126250631 has 4 divisors (see below), whose sum is σ = 113140039600. Its totient is φ = 113112461664.

The previous prime is 113126250623. The next prime is 113126250739. The reversal of 113126250631 is 136052621311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136052621311 = 126781 ⋅1073131.

It is a cyclic number.

It is not a de Polignac number, because 113126250631 - 2³ = 113126250623 is a prime.

It is a super-2 number, since 2×113126250631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113126250593 and 113126250602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113126250131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6882171 + ... + 6898588.

It is an arithmetic number, because the mean of its divisors is an integer number (28285009900).

Almost surely, 2^113126250631 is an apocalyptic number.

113126250631 is a deficient number, since it is larger than the sum of its proper divisors (13788969).

113126250631 is an equidigital number, since it uses as much as digits as its factorization.

113126250631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13788968.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 113126250631 its reverse (136052621311), we get a palindrome (249178871942).

The spelling of 113126250631 in words is "one hundred thirteen billion, one hundred twenty-six million, two hundred fifty thousand, six hundred thirty-one".