113131300031 has 4 divisors (see below), whose sum is σ = 119085579000. Its totient is φ = 107177021064.

The previous prime is 113131300021. The next prime is 113131300049. The reversal of 113131300031 is 130003131311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113131300031 - 2¹⁰ = 113131299007 is a prime.

It is a super-2 number, since 2×113131300031² (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 = 113131299982 and 113131300009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113131300021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2977139456 + ... + 2977139493.

It is an arithmetic number, because the mean of its divisors is an integer number (29771394750).

Almost surely, 2^113131300031 is an apocalyptic number.

113131300031 is a deficient number, since it is larger than the sum of its proper divisors (5954278969).

113131300031 is an equidigital number, since it uses as much as digits as its factorization.

113131300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954278968.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 113131300031 its reverse (130003131311), we get a palindrome (243134431342).

The spelling of 113131300031 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred thousand, thirty-one".