20122013031312 has 20 divisors (see below), whose sum is σ = 51981866997680. Its totient is φ = 6707337677088.

The previous prime is 20122013031311. The next prime is 20122013031317. The reversal of 20122013031312 is 21313031022102.

It is not an unprimeable number, because it can be changed into a prime (20122013031311) 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, 209604302362 + ... + 209604302457.

It is an arithmetic number, because the mean of its divisors is an integer number (2599093349884).

Almost surely, 2^{20122013031312} is an apocalyptic number.

It is an amenable number.

20122013031312 is an abundant number, since it is smaller than the sum of its proper divisors (31859853966368).

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

20122013031312 is a wasteful number, since it uses less digits than its factorization.

20122013031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419208604830 (or 419208604824 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20122013031312 its reverse (21313031022102), we get a palindrome (41435044053414).

The spelling of 20122013031312 in words is "twenty trillion, one hundred twenty-two billion, thirteen million, thirty-one thousand, three hundred twelve".