31021411113 has 48 divisors (see below), whose sum is σ = 59151620736. Its totient is φ = 15167070720.

The previous prime is 31021411087. The next prime is 31021411117. The reversal of 31021411113 is 31111412013.

It is a happy number.

It is not a de Polignac number, because 31021411113 - 2²⁹ = 30484540201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31021411117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1304806 + ... + 1328367.

It is an arithmetic number, because the mean of its divisors is an integer number (1232325432).

Almost surely, 2^31021411113 is an apocalyptic number.

31021411113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31021411113 is a deficient number, since it is larger than the sum of its proper divisors (28130209623).

31021411113 is a wasteful number, since it uses less digits than its factorization.

31021411113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633214 (or 2633211 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31021411113 its reverse (31111412013), we get a palindrome (62132823126).

The spelling of 31021411113 in words is "thirty-one billion, twenty-one million, four hundred eleven thousand, one hundred thirteen".