20313122215336 has 128 divisors (see below), whose sum is σ = 42393824064000. Its totient is φ = 9084555067392.

The previous prime is 20313122215297. The next prime is 20313122215349. The reversal of 20313122215336 is 63351222131302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238831410 + ... + 238916446.

It is an arithmetic number, because the mean of its divisors is an integer number (331201750500).

Almost surely, 2^{20313122215336} is an apocalyptic number.

It is an amenable number.

20313122215336 is an abundant number, since it is smaller than the sum of its proper divisors (22080701848664).

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

20313122215336 is a wasteful number, since it uses less digits than its factorization.

20313122215336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86291 (or 86287 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 20313122215336 its reverse (63351222131302), we get a palindrome (83664344346638).

The spelling of 20313122215336 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty-two million, two hundred fifteen thousand, three hundred thirty-six".