13020323231011 has 4 divisors (see below), whose sum is σ = 13020557334624. Its totient is φ = 13020089127400.

The previous prime is 13020323230951. The next prime is 13020323231087. The reversal of 13020323231011 is 11013232302031.

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 13020323231011 - 2⁷ = 13020323230883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020323231711) 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, 116968360 + ... + 117079621.

It is an arithmetic number, because the mean of its divisors is an integer number (3255139333656).

Almost surely, 2^{13020323231011} is an apocalyptic number.

13020323231011 is a deficient number, since it is larger than the sum of its proper divisors (234103613).

13020323231011 is an equidigital number, since it uses as much as digits as its factorization.

13020323231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234103612.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13020323231011 its reverse (11013232302031), we get a palindrome (24033555533042).

The spelling of 13020323231011 in words is "thirteen trillion, twenty billion, three hundred twenty-three million, two hundred thirty-one thousand, eleven".