20331313112 has 32 divisors (see below), whose sum is σ = 41770019520. Its totient is φ = 9200785440.

The previous prime is 20331313103. The next prime is 20331313139. The reversal of 20331313112 is 21131313302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488918 + ... + 528869.

It is an arithmetic number, because the mean of its divisors is an integer number (1305313110).

Almost surely, 2^20331313112 is an apocalyptic number.

20331313112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20331313112 is an abundant number, since it is smaller than the sum of its proper divisors (21438706408).

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

20331313112 is a wasteful number, since it uses less digits than its factorization.

20331313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018031 (or 1018027 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20331313112 its reverse (21131313302), we get a palindrome (41462626414).

The spelling of 20331313112 in words is "twenty billion, three hundred thirty-one million, three hundred thirteen thousand, one hundred twelve".