12120553325 has 24 divisors (see below), whose sum is σ = 16068132288. Its totient is φ = 9037428480.

The previous prime is 12120553309. The next prime is 12120553337. The reversal of 12120553325 is 52335502121.

It is not a de Polignac number, because 12120553325 - 2⁴ = 12120553309 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 94667 + ... + 182216.

It is an arithmetic number, because the mean of its divisors is an integer number (669505512).

Almost surely, 2^12120553325 is an apocalyptic number.

It is an amenable number.

12120553325 is a deficient number, since it is larger than the sum of its proper divisors (3947578963).

12120553325 is a wasteful number, since it uses less digits than its factorization.

12120553325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277013 (or 277008 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 12120553325 in words is "twelve billion, one hundred twenty million, five hundred fifty-three thousand, three hundred twenty-five".