20013111313 has 12 divisors (see below), whose sum is σ = 22132096128. Its totient is φ = 18080577840.

The previous prime is 20013111281. The next prime is 20013111341. The reversal of 20013111313 is 31311131002.

It is not a de Polignac number, because 20013111313 - 2⁵ = 20013111281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013111353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251853 + ... + 1267738.

It is an arithmetic number, because the mean of its divisors is an integer number (1844341344).

Almost surely, 2^20013111313 is an apocalyptic number.

It is an amenable number.

20013111313 is a deficient number, since it is larger than the sum of its proper divisors (2118984815).

20013111313 is a wasteful number, since it uses less digits than its factorization.

20013111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519664 (or 2519651 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20013111313 its reverse (31311131002), we get a palindrome (51324242315).

The spelling of 20013111313 in words is "twenty billion, thirteen million, one hundred eleven thousand, three hundred thirteen".