13231202113 has 4 divisors (see below), whose sum is σ = 13231465668. Its totient is φ = 13230938560.

The previous prime is 13231202099. The next prime is 13231202123. The reversal of 13231202113 is 31120213231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6420496384 + 6810705729 = 80128^2 + 82527^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231202113 - 2²⁵ = 13197647681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231202123) 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, 30556 + ... + 165517.

It is an arithmetic number, because the mean of its divisors is an integer number (3307866417).

Almost surely, 2^13231202113 is an apocalyptic number.

It is an amenable number.

13231202113 is a deficient number, since it is larger than the sum of its proper divisors (263555).

13231202113 is an equidigital number, since it uses as much as digits as its factorization.

13231202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263554.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13231202113 its reverse (31120213231), we get a palindrome (44351415344).

The spelling of 13231202113 in words is "thirteen billion, two hundred thirty-one million, two hundred two thousand, one hundred thirteen".