20312012332 has 12 divisors (see below), whose sum is σ = 35592736536. Its totient is φ = 10142659040.

The previous prime is 20312012317. The next prime is 20312012381. The reversal of 20312012332 is 23321021302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333358 + ... + 3339445.

It is an arithmetic number, because the mean of its divisors is an integer number (2966061378).

Almost surely, 2^20312012332 is an apocalyptic number.

It is an amenable number.

20312012332 is a deficient number, since it is larger than the sum of its proper divisors (15280724204).

20312012332 is a wasteful number, since it uses less digits than its factorization.

20312012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673568 (or 6673566 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20312012332 its reverse (23321021302), we get a palindrome (43633033634).

The spelling of 20312012332 in words is "twenty billion, three hundred twelve million, twelve thousand, three hundred thirty-two".