120120172 has 6 divisors (see below), whose sum is σ = 210210308. Its totient is φ = 60060084.

The previous prime is 120120157. The next prime is 120120179. The reversal of 120120172 is 271021021.

It is not an unprimeable number, because it can be changed into a prime (120120179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015018 + ... + 15015025.

Almost surely, 2^120120172 is an apocalyptic number.

It is an amenable number.

120120172 is a deficient number, since it is larger than the sum of its proper divisors (90090136).

120120172 is a wasteful number, since it uses less digits than its factorization.

120120172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30030047 (or 30030045 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 120120172 is about 10959.9348538210. The cubic root of 120120172 is about 493.4070097333.

Adding to 120120172 its reverse (271021021), we get a palindrome (391141193).

The spelling of 120120172 in words is "one hundred twenty million, one hundred twenty thousand, one hundred seventy-two".