13231211315 has 16 divisors (see below), whose sum is σ = 18245922240. Its totient is φ = 9022700160.

The previous prime is 13231211291. The next prime is 13231211347. The reversal of 13231211315 is 51311213231.

It is not a de Polignac number, because 13231211315 - 2¹⁶ = 13231145779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037960 + ... + 1050629.

It is an arithmetic number, because the mean of its divisors is an integer number (1140370140).

Almost surely, 2^13231211315 is an apocalyptic number.

13231211315 is a deficient number, since it is larger than the sum of its proper divisors (5014710925).

13231211315 is a wasteful number, since it uses less digits than its factorization.

13231211315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088782.

The product of its digits is 540, while the sum is 23.

Adding to 13231211315 its reverse (51311213231), we get a palindrome (64542424546).

The spelling of 13231211315 in words is "thirteen billion, two hundred thirty-one million, two hundred eleven thousand, three hundred fifteen".