31023021032 has 16 divisors (see below), whose sum is σ = 58711793760. Its totient is φ = 15366542704.

The previous prime is 31023021011. The next prime is 31023021041. The reversal of 31023021032 is 23012032013.

It is a self number, because there is not a number n which added to its sum of digits gives 31023021032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18120068 + ... + 18121779.

It is an arithmetic number, because the mean of its divisors is an integer number (3669487110).

Almost surely, 2^31023021032 is an apocalyptic number.

It is an amenable number.

31023021032 is a deficient number, since it is larger than the sum of its proper divisors (27688772728).

31023021032 is a wasteful number, since it uses less digits than its factorization.

31023021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36241960 (or 36241956 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31023021032 its reverse (23012032013), we get a palindrome (54035053045).

The spelling of 31023021032 in words is "thirty-one billion, twenty-three million, twenty-one thousand, thirty-two".