20331313312 has 24 divisors (see below), whose sum is σ = 41767590816. Its totient is φ = 9723671232.

The previous prime is 20331313267. The next prime is 20331313313. The reversal of 20331313312 is 21331313302.

It is not an unprimeable number, because it can be changed into a prime (20331313313) 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, 13811298 + ... + 13812769.

It is an arithmetic number, because the mean of its divisors is an integer number (1740316284).

Almost surely, 2^20331313312 is an apocalyptic number.

It is an amenable number.

20331313312 is an abundant number, since it is smaller than the sum of its proper divisors (21436277504).

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

20331313312 is a wasteful number, since it uses less digits than its factorization.

20331313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27624100 (or 27624092 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 20331313312 its reverse (21331313302), we get a palindrome (41662626614).

The spelling of 20331313312 in words is "twenty billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred twelve".