12513255155 has 4 divisors (see below), whose sum is σ = 15015906192. Its totient is φ = 10010604120.

The previous prime is 12513255151. The next prime is 12513255169. The reversal of 12513255155 is 55155231521.

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

It is not a de Polignac number, because 12513255155 - 2² = 12513255151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12513255151) 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, 1251325511 + ... + 1251325520.

It is an arithmetic number, because the mean of its divisors is an integer number (3753976548).

Almost surely, 2^12513255155 is an apocalyptic number.

12513255155 is a deficient number, since it is larger than the sum of its proper divisors (2502651037).

12513255155 is an equidigital number, since it uses as much as digits as its factorization.

12513255155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502651036.

The product of its digits is 37500, while the sum is 35.

Adding to 12513255155 its reverse (55155231521), we get a palindrome (67668486676).

The spelling of 12513255155 in words is "twelve billion, five hundred thirteen million, two hundred fifty-five thousand, one hundred fifty-five".