12103551115 has 32 divisors (see below), whose sum is σ = 15598327680. Its totient is φ = 8983885824.

The previous prime is 12103551107. The next prime is 12103551167. The reversal of 12103551115 is 51115530121.

It is not a de Polignac number, because 12103551115 - 2³ = 12103551107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12103551115.

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, 2001877 + ... + 2007913.

It is an arithmetic number, because the mean of its divisors is an integer number (487447740).

Almost surely, 2^12103551115 is an apocalyptic number.

12103551115 is a deficient number, since it is larger than the sum of its proper divisors (3494776565).

12103551115 is a wasteful number, since it uses less digits than its factorization.

12103551115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6391.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 12103551115 in words is "twelve billion, one hundred three million, five hundred fifty-one thousand, one hundred fifteen".