12523116222426 has 16 divisors (see below), whose sum is σ = 25854175427328. Its totient is φ = 4039714910400.

The previous prime is 12523116222349. The next prime is 12523116222443. The reversal of 12523116222426 is 62422261132521.

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, 33664290735 + ... + 33664291106.

It is an arithmetic number, because the mean of its divisors is an integer number (1615885964208).

Almost surely, 2^{12523116222426} is an apocalyptic number.

12523116222426 is an abundant number, since it is smaller than the sum of its proper divisors (13331059204902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12523116222426 is a wasteful number, since it uses less digits than its factorization.

12523116222426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67328581877.

The product of its digits is 138240, while the sum is 39.

Adding to 12523116222426 its reverse (62422261132521), we get a palindrome (74945377354947).

The spelling of 12523116222426 in words is "twelve trillion, five hundred twenty-three billion, one hundred sixteen million, two hundred twenty-two thousand, four hundred twenty-six".