120031687 has 6 divisors (see below), whose sum is σ = 125477912. Its totient is φ = 114812412.

The previous prime is 120031673. The next prime is 120031711. The reversal of 120031687 is 786130021.

It is not a de Polignac number, because 120031687 - 2²³ = 111643079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112923 + ... + 113980.

Almost surely, 2^120031687 is an apocalyptic number.

120031687 is a deficient number, since it is larger than the sum of its proper divisors (5446225).

120031687 is an equidigital number, since it uses as much as digits as its factorization.

120031687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226949 (or 226926 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 120031687 is about 10955.8973616952. The cubic root of 120031687 is about 493.2858259686.

The spelling of 120031687 in words is "one hundred twenty million, thirty-one thousand, six hundred eighty-seven".