23231320555236 has 24 divisors (see below), whose sum is σ = 54206972851584. Its totient is φ = 7743693772320.

The previous prime is 23231320555213. The next prime is 23231320555249. The reversal of 23231320555236 is 63255502313232.

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, 8748475 + ... + 11090466.

It is an arithmetic number, because the mean of its divisors is an integer number (2258623868816).

Almost surely, 2^{23231320555236} is an apocalyptic number.

It is an amenable number.

23231320555236 is an abundant number, since it is smaller than the sum of its proper divisors (30975652296348).

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

23231320555236 is a wasteful number, since it uses less digits than its factorization.

23231320555236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19936531 (or 19936529 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 42.

Adding to 23231320555236 its reverse (63255502313232), we get a palindrome (86486822868468).

The spelling of 23231320555236 in words is "twenty-three trillion, two hundred thirty-one billion, three hundred twenty million, five hundred fifty-five thousand, two hundred thirty-six".