23121003300 has 72 divisors (see below), whose sum is σ = 66912384000. Its totient is φ = 6164161920.

The previous prime is 23121003259. The next prime is 23121003313. The reversal of 23121003300 is 330012132.

It is a super-2 number, since 2×23121003300² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23121003300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2106226 + ... + 2117174.

Almost surely, 2^23121003300 is an apocalyptic number.

23121003300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121003300 is an abundant number, since it is smaller than the sum of its proper divisors (43791380700).

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

23121003300 is a wasteful number, since it uses less digits than its factorization.

23121003300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18005 (or 17998 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 23121003300 its reverse (330012132), we get a palindrome (23451015432).

The spelling of 23121003300 in words is "twenty-three billion, one hundred twenty-one million, three thousand, three hundred".