23121130203320 has 16 divisors (see below), whose sum is σ = 52022542957560. Its totient is φ = 9248452081312.

The previous prime is 23121130203287. The next prime is 23121130203323. The reversal of 23121130203320 is 2330203112132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121130203323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289014127502 + ... + 289014127581.

Almost surely, 2^{23121130203320} is an apocalyptic number.

23121130203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121130203320 is an abundant number, since it is smaller than the sum of its proper divisors (28901412754240).

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

23121130203320 is a wasteful number, since it uses less digits than its factorization.

23121130203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578028255094 (or 578028255090 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23121130203320 its reverse (2330203112132), we get a palindrome (25451333315452).

The spelling of 23121130203320 in words is "twenty-three trillion, one hundred twenty-one billion, one hundred thirty million, two hundred three thousand, three hundred twenty".