23031020211220 has 24 divisors (see below), whose sum is σ = 55274448507264. Its totient is φ = 7896349786656.

The previous prime is 23031020211169. The next prime is 23031020211229. The reversal of 23031020211220 is 2211202013032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031020211229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82253643472 + ... + 82253643751.

It is an arithmetic number, because the mean of its divisors is an integer number (2303102021136).

Almost surely, 2^{23031020211220} is an apocalyptic number.

23031020211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23031020211220 is an abundant number, since it is smaller than the sum of its proper divisors (32243428296044).

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

23031020211220 is a wasteful number, since it uses less digits than its factorization.

23031020211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164507287239 (or 164507287237 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23031020211220 its reverse (2211202013032), we get a palindrome (25242222224252).

The spelling of 23031020211220 in words is "twenty-three trillion, thirty-one billion, twenty million, two hundred eleven thousand, two hundred twenty".