20031130131312 has 20 divisors (see below), whose sum is σ = 51747086172680. Its totient is φ = 6677043377088.

The previous prime is 20031130131283. The next prime is 20031130131407. The reversal of 20031130131312 is 21313103113002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208657605487 + ... + 208657605582.

It is an arithmetic number, because the mean of its divisors is an integer number (2587354308634).

Almost surely, 2^{20031130131312} is an apocalyptic number.

It is an amenable number.

20031130131312 is an abundant number, since it is smaller than the sum of its proper divisors (31715956041368).

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

20031130131312 is a wasteful number, since it uses less digits than its factorization.

20031130131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417315211080 (or 417315211074 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20031130131312 its reverse (21313103113002), we get a palindrome (41344233244314).

The spelling of 20031130131312 in words is "twenty trillion, thirty-one billion, one hundred thirty million, one hundred thirty-one thousand, three hundred twelve".