121313344412 has 24 divisors (see below), whose sum is σ = 228742544016. Its totient is φ = 55962966528.

The previous prime is 121313344409. The next prime is 121313344441. The reversal of 121313344412 is 214443313121.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 473438 + ... + 683205.

It is an arithmetic number, because the mean of its divisors is an integer number (9530939334).

Almost surely, 2^121313344412 is an apocalyptic number.

It is an amenable number.

121313344412 is a deficient number, since it is larger than the sum of its proper divisors (107429199604).

121313344412 is a wasteful number, since it uses less digits than its factorization.

121313344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158677 (or 1158675 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

Adding to 121313344412 its reverse (214443313121), we get a palindrome (335756657533).

The spelling of 121313344412 in words is "one hundred twenty-one billion, three hundred thirteen million, three hundred forty-four thousand, four hundred twelve".