31029393000 has 64 divisors (see below), whose sum is σ = 96811715520. Its totient is φ = 8274504000.

The previous prime is 31029392957. The next prime is 31029393037. The reversal of 31029393000 is 39392013.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5168566 + ... + 5174565.

It is an arithmetic number, because the mean of its divisors is an integer number (1512683055).

Almost surely, 2^31029393000 is an apocalyptic number.

31029393000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31029393000 is an abundant number, since it is smaller than the sum of its proper divisors (65782322520).

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

31029393000 is a wasteful number, since it uses less digits than its factorization.

31029393000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10343155 (or 10343141 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The spelling of 31029393000 in words is "thirty-one billion, twenty-nine million, three hundred ninety-three thousand".