23121130104012 has 48 divisors (see below), whose sum is σ = 54703016410112. Its totient is φ = 7599426791040.

The previous prime is 23121130103989. The next prime is 23121130104041. The reversal of 23121130104012 is 21040103112132.

It is a super-2 number, since 2×23121130104012² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23121130104012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276064 + ... + 6805767.

Almost surely, 2^{23121130104012} is an apocalyptic number.

It is an amenable number.

23121130104012 is an abundant number, since it is smaller than the sum of its proper divisors (31581886306100).

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

23121130104012 is a wasteful number, since it uses less digits than its factorization.

23121130104012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085638 (or 7085636 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 23121130104012 its reverse (21040103112132), we get a palindrome (44161233216144).

The spelling of 23121130104012 in words is "twenty-three trillion, one hundred twenty-one billion, one hundred thirty million, one hundred four thousand, twelve".