20312531152 has 20 divisors (see below), whose sum is σ = 39376532320. Its totient is φ = 10150845408.

The previous prime is 20312531087. The next prime is 20312531159. The reversal of 20312531152 is 25113521302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312531159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307758 + ... + 367885.

It is an arithmetic number, because the mean of its divisors is an integer number (1968826616).

Almost surely, 2^20312531152 is an apocalyptic number.

It is an amenable number.

20312531152 is a deficient number, since it is larger than the sum of its proper divisors (19064001168).

20312531152 is a wasteful number, since it uses less digits than its factorization.

20312531152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677530 (or 677524 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 20312531152 in words is "twenty billion, three hundred twelve million, five hundred thirty-one thousand, one hundred fifty-two".