13115251155 has 8 divisors (see below), whose sum is σ = 20984401872. Its totient is φ = 6994800608.

The previous prime is 13115251111. The next prime is 13115251169. The reversal of 13115251155 is 55115251131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13115251155 - 2¹¹ = 13115249107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437175024 + ... + 437175053.

It is an arithmetic number, because the mean of its divisors is an integer number (2623050234).

Almost surely, 2^13115251155 is an apocalyptic number.

13115251155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13115251155 is a deficient number, since it is larger than the sum of its proper divisors (7869150717).

13115251155 is an equidigital number, since it uses as much as digits as its factorization.

13115251155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874350085.

The product of its digits is 3750, while the sum is 30.

The spelling of 13115251155 in words is "thirteen billion, one hundred fifteen million, two hundred fifty-one thousand, one hundred fifty-five".