31431012080 has 60 divisors (see below), whose sum is σ = 79130861640. Its totient is φ = 11605291776.

The previous prime is 31431012079. The next prime is 31431012083. The reversal of 31431012080 is 8021013413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431012083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1148870 + ... + 1175909.

It is an arithmetic number, because the mean of its divisors is an integer number (1318847694).

Almost surely, 2^31431012080 is an apocalyptic number.

It is an amenable number.

31431012080 is an abundant number, since it is smaller than the sum of its proper divisors (47699849560).

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

31431012080 is a wasteful number, since it uses less digits than its factorization.

31431012080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324818 (or 2324799 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31431012080 its reverse (8021013413), we get a palindrome (39452025493).

The spelling of 31431012080 in words is "thirty-one billion, four hundred thirty-one million, twelve thousand, eighty".