12920120 has 16 divisors (see below), whose sum is σ = 29070360. Its totient is φ = 5168032.

The previous prime is 12920093. The next prime is 12920177. The reversal of 12920120 is 2102921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161462 + ... + 161541.

Almost surely, 2^12920120 is an apocalyptic number.

12920120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12920120 is an abundant number, since it is smaller than the sum of its proper divisors (16150240).

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

12920120 is a wasteful number, since it uses less digits than its factorization.

12920120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323014 (or 323010 counting only the distinct ones).

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

The square root of 12920120 is about 3594.4568435300. The cubic root of 12920120 is about 234.6508773955.

The spelling of 12920120 in words is "twelve million, nine hundred twenty thousand, one hundred twenty".