13111220313 has 24 divisors (see below), whose sum is σ = 19943146080. Its totient is φ = 8277465600.

The previous prime is 13111220279. The next prime is 13111220323. The reversal of 13111220313 is 31302211131.

13111220313 is a `hidden beast` number, since 131 + 1 + 1 + 220 + 313 = 666.

It is not a de Polignac number, because 13111220313 - 2¹⁴ = 13111203929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13111220323) 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, 456838 + ... + 484688.

It is an arithmetic number, because the mean of its divisors is an integer number (830964420).

Almost surely, 2^13111220313 is an apocalyptic number.

It is an amenable number.

13111220313 is a deficient number, since it is larger than the sum of its proper divisors (6831925767).

13111220313 is a wasteful number, since it uses less digits than its factorization.

13111220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30629 (or 30626 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13111220313 its reverse (31302211131), we get a palindrome (44413431444).

The spelling of 13111220313 in words is "thirteen billion, one hundred eleven million, two hundred twenty thousand, three hundred thirteen".