13011323311 has 4 divisors (see below), whose sum is σ = 14870083792. Its totient is φ = 11152562832.

The previous prime is 13011323293. The next prime is 13011323357. The reversal of 13011323311 is 11332311031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13011323311 - 2⁵ = 13011323279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011333311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929380230 + ... + 929380243.

It is an arithmetic number, because the mean of its divisors is an integer number (3717520948).

Almost surely, 2^13011323311 is an apocalyptic number.

13011323311 is a deficient number, since it is larger than the sum of its proper divisors (1858760481).

13011323311 is an equidigital number, since it uses as much as digits as its factorization.

13011323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858760480.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13011323311 its reverse (11332311031), we get a palindrome (24343634342).

The spelling of 13011323311 in words is "thirteen billion, eleven million, three hundred twenty-three thousand, three hundred eleven".