13611131355 has 32 divisors (see below), whose sum is σ = 22478976000. Its totient is φ = 7027523712.

The previous prime is 13611131323. The next prime is 13611131363. The reversal of 13611131355 is 55313111631.

It is not a de Polignac number, because 13611131355 - 2⁵ = 13611131323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48826 + ... + 172064.

It is an arithmetic number, because the mean of its divisors is an integer number (702468000).

Almost surely, 2^13611131355 is an apocalyptic number.

13611131355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13611131355 is a deficient number, since it is larger than the sum of its proper divisors (8867844645).

13611131355 is a wasteful number, since it uses less digits than its factorization.

13611131355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123483.

The product of its digits is 4050, while the sum is 30.

Adding to 13611131355 its reverse (55313111631), we get a palindrome (68924242986).

The spelling of 13611131355 in words is "thirteen billion, six hundred eleven million, one hundred thirty-one thousand, three hundred fifty-five".