13243755315 has 32 divisors (see below), whose sum is σ = 24558253056. Its totient is φ = 5969013120.

The previous prime is 13243755299. The next prime is 13243755319. The reversal of 13243755315 is 51355734231.

It is not a de Polignac number, because 13243755315 - 2⁴ = 13243755299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13243755319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 880792 + ... + 895701.

It is an arithmetic number, because the mean of its divisors is an integer number (767445408).

Almost surely, 2^13243755315 is an apocalyptic number.

13243755315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13243755315 is a deficient number, since it is larger than the sum of its proper divisors (11314497741).

13243755315 is a wasteful number, since it uses less digits than its factorization.

13243755315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776579.

The product of its digits is 189000, while the sum is 39.

The spelling of 13243755315 in words is "thirteen billion, two hundred forty-three million, seven hundred fifty-five thousand, three hundred fifteen".