523454426121 has 128 divisors (see below), whose sum is σ = 809836904448. Its totient is φ = 297960768000.

The previous prime is 523454426113. The next prime is 523454426219. The reversal of 523454426121 is 121624454325.

It is not a de Polignac number, because 523454426121 - 2³ = 523454426113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523454426121.

It is not an unprimeable number, because it can be changed into a prime (523454426111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 757531386 + ... + 757532076.

It is an arithmetic number, because the mean of its divisors is an integer number (6326850816).

Almost surely, 2^523454426121 is an apocalyptic number.

It is an amenable number.

523454426121 is a deficient number, since it is larger than the sum of its proper divisors (286382478327).

523454426121 is a wasteful number, since it uses less digits than its factorization.

523454426121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995.

The product of its digits is 230400, while the sum is 39.

The spelling of 523454426121 in words is "five hundred twenty-three billion, four hundred fifty-four million, four hundred twenty-six thousand, one hundred twenty-one".