13120121312 has 24 divisors (see below), whose sum is σ = 25834208400. Its totient is φ = 6559052544.

The previous prime is 13120121251. The next prime is 13120121321. The reversal of 13120121312 is 21312102131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207989 + ... + 263627.

It is an arithmetic number, because the mean of its divisors is an integer number (1076425350).

Almost surely, 2^13120121312 is an apocalyptic number.

It is an amenable number.

13120121312 is a deficient number, since it is larger than the sum of its proper divisors (12714087088).

13120121312 is an equidigital number, since it uses as much as digits as its factorization.

13120121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63018 (or 63010 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13120121312 its reverse (21312102131), we get a palindrome (34432223443).

The spelling of 13120121312 in words is "thirteen billion, one hundred twenty million, one hundred twenty-one thousand, three hundred twelve".