20113011231313 has 24 divisors (see below), whose sum is σ = 27153260703936. Its totient is φ = 14466901176000.

The previous prime is 20113011231311. The next prime is 20113011231323. The reversal of 20113011231313 is 31313211031102.

It is not a de Polignac number, because 20113011231313 - 2¹ = 20113011231311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113011231311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 772791538 + ... + 772817563.

It is an arithmetic number, because the mean of its divisors is an integer number (1131385862664).

Almost surely, 2^{20113011231313} is an apocalyptic number.

It is an amenable number.

20113011231313 is a deficient number, since it is larger than the sum of its proper divisors (7040249472623).

20113011231313 is a wasteful number, since it uses less digits than its factorization.

20113011231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545609145 (or 1545609132 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20113011231313 its reverse (31313211031102), we get a palindrome (51426222262415).

The spelling of 20113011231313 in words is "twenty trillion, one hundred thirteen billion, eleven million, two hundred thirty-one thousand, three hundred thirteen".