13111123313 has 8 divisors (see below), whose sum is σ = 13141315656. Its totient is φ = 13080960000.

The previous prime is 13111123309. The next prime is 13111123327. The reversal of 13111123313 is 31332111131.

It can be written as a sum of positive squares in 4 ways, for example, as 947900944 + 12163222369 = 30788^2 + 110287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111123313 - 2² = 13111123309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111123013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076345 + ... + 1088457.

It is an arithmetic number, because the mean of its divisors is an integer number (1642664457).

Almost surely, 2^13111123313 is an apocalyptic number.

It is an amenable number.

13111123313 is a deficient number, since it is larger than the sum of its proper divisors (30192343).

13111123313 is a wasteful number, since it uses less digits than its factorization.

13111123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14515.

The product of its digits is 162, while the sum is 20.

Adding to 13111123313 its reverse (31332111131), we get a palindrome (44443234444).

The spelling of 13111123313 in words is "thirteen billion, one hundred eleven million, one hundred twenty-three thousand, three hundred thirteen".