31427431116 has 48 divisors (see below), whose sum is σ = 74628153600. Its totient is φ = 10290716352.

The previous prime is 31427431111. The next prime is 31427431121. The reversal of 31427431116 is 61113472413.

It is an interprime number because it is at equal distance from previous prime (31427431111) and next prime (31427431121).

It is not an unprimeable number, because it can be changed into a prime (31427431111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996201 + ... + 1027263.

It is an arithmetic number, because the mean of its divisors is an integer number (1554753200).

Almost surely, 2^31427431116 is an apocalyptic number.

It is an amenable number.

31427431116 is an abundant number, since it is smaller than the sum of its proper divisors (43200722484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31427431116 is a wasteful number, since it uses less digits than its factorization.

31427431116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32558 (or 32556 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The spelling of 31427431116 in words is "thirty-one billion, four hundred twenty-seven million, four hundred thirty-one thousand, one hundred sixteen".