31013112103 has 8 divisors (see below), whose sum is σ = 32528993472. Its totient is φ = 29532898656.

The previous prime is 31013112077. The next prime is 31013112113. The reversal of 31013112103 is 30121131013.

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 31013112103 - 2²⁵ = 30979557671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013112113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8915200 + ... + 8918677.

It is an arithmetic number, because the mean of its divisors is an integer number (4066124184).

Almost surely, 2^31013112103 is an apocalyptic number.

31013112103 is a deficient number, since it is larger than the sum of its proper divisors (1515881369).

31013112103 is a wasteful number, since it uses less digits than its factorization.

31013112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17833961.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31013112103 its reverse (30121131013), we get a palindrome (61134243116).

The spelling of 31013112103 in words is "thirty-one billion, thirteen million, one hundred twelve thousand, one hundred three".