23231340400220 has 12 divisors (see below), whose sum is σ = 48785814840504. Its totient is φ = 9292536160080.

The previous prime is 23231340400211. The next prime is 23231340400267. The reversal of 23231340400220 is 2200404313232.

It is a self number, because there is not a number n which added to its sum of digits gives 23231340400220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580783509986 + ... + 580783510025.

It is an arithmetic number, because the mean of its divisors is an integer number (4065484570042).

Almost surely, 2^{23231340400220} is an apocalyptic number.

23231340400220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231340400220 is an abundant number, since it is smaller than the sum of its proper divisors (25554474440284).

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

23231340400220 is a wasteful number, since it uses less digits than its factorization.

23231340400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161567020020 (or 1161567020018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23231340400220 its reverse (2200404313232), we get a palindrome (25431744713452).

The spelling of 23231340400220 in words is "twenty-three trillion, two hundred thirty-one billion, three hundred forty million, four hundred thousand, two hundred twenty".