23121003103112 has 32 divisors (see below), whose sum is σ = 44360954035200. Its totient is φ = 11291426147904.

The previous prime is 23121003103111. The next prime is 23121003103141. The reversal of 23121003103112 is 21130130012132.

It is a happy number.

It is a super-2 number, since 2×23121003103112² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23121003103111) 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 7 ways as a sum of consecutive naturals, for example, 17184338 + ... + 18480894.

It is an arithmetic number, because the mean of its divisors is an integer number (1386279813600).

Almost surely, 2^{23121003103112} is an apocalyptic number.

It is an amenable number.

23121003103112 is a deficient number, since it is larger than the sum of its proper divisors (21239950932088).

23121003103112 is a wasteful number, since it uses less digits than its factorization.

23121003103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348445 (or 1348441 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 23121003103112 its reverse (21130130012132), we get a palindrome (44251133115244).

The spelling of 23121003103112 in words is "twenty-three trillion, one hundred twenty-one billion, three million, one hundred three thousand, one hundred twelve".