113123031131 has 8 divisors (see below), whose sum is σ = 123501814128. Its totient is φ = 102760060000.

The previous prime is 113123031127. The next prime is 113123031163. The reversal of 113123031131 is 131130321311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113123031131 - 2² = 113123031127 is a prime.

It is a super-2 number, since 2×113123031131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113123031121) 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 7 ways as a sum of consecutive naturals, for example, 3938000 + ... + 3966621.

It is an arithmetic number, because the mean of its divisors is an integer number (15437726766).

Almost surely, 2^113123031131 is an apocalyptic number.

113123031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113123031131 is a deficient number, since it is larger than the sum of its proper divisors (10378782997).

113123031131 is a wasteful number, since it uses less digits than its factorization.

113123031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905933.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 113123031131 its reverse (131130321311), we get a palindrome (244253352442).

The spelling of 113123031131 in words is "one hundred thirteen billion, one hundred twenty-three million, thirty-one thousand, one hundred thirty-one".