31103012113 has 8 divisors (see below), whose sum is σ = 32012053632. Its totient is φ = 30197571696.

The previous prime is 31103012093. The next prime is 31103012117. The reversal of 31103012113 is 31121030113.

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 31103012113 - 2²⁵ = 31069457681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103012117) 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, 882745 + ... + 917302.

It is an arithmetic number, because the mean of its divisors is an integer number (4001506704).

Almost surely, 2^31103012113 is an apocalyptic number.

It is an amenable number.

31103012113 is a deficient number, since it is larger than the sum of its proper divisors (909041519).

31103012113 is a wasteful number, since it uses less digits than its factorization.

31103012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800551.

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

Adding to 31103012113 its reverse (31121030113), we get a palindrome (62224042226).

The spelling of 31103012113 in words is "thirty-one billion, one hundred three million, twelve thousand, one hundred thirteen".