12542604123 has 16 divisors (see below), whose sum is σ = 19729074176. Its totient is φ = 6936001920.

The previous prime is 12542604059. The next prime is 12542604169. The reversal of 12542604123 is 32140624521.

It is not a de Polignac number, because 12542604123 - 2⁶ = 12542604059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12542604223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9632686 + ... + 9633987.

It is an arithmetic number, because the mean of its divisors is an integer number (1233067136).

Almost surely, 2^12542604123 is an apocalyptic number.

12542604123 is a deficient number, since it is larger than the sum of its proper divisors (7186470053).

12542604123 is a wasteful number, since it uses less digits than its factorization.

12542604123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19266714.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 12542604123 in words is "twelve billion, five hundred forty-two million, six hundred four thousand, one hundred twenty-three".