20331000131312 has 80 divisors (see below), whose sum is σ = 42461790313152. Its totient is φ = 9374610954240.

The previous prime is 20331000131297. The next prime is 20331000131341. The reversal of 20331000131312 is 21313100013302.

It is a super-2 number, since 2×20331000131312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1702615262 + ... + 1702627202.

Almost surely, 2^{20331000131312} is an apocalyptic number.

It is an amenable number.

20331000131312 is an abundant number, since it is smaller than the sum of its proper divisors (22130790181840).

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

20331000131312 is a wasteful number, since it uses less digits than its factorization.

20331000131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19066 (or 19060 counting only the distinct ones).

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

Adding to 20331000131312 its reverse (21313100013302), we get a palindrome (41644100144614).

The spelling of 20331000131312 in words is "twenty trillion, three hundred thirty-one billion, one hundred thirty-one thousand, three hundred twelve".