120131031 has 8 divisors (see below), whose sum is σ = 160288240. Its totient is φ = 80030592.

The previous prime is 120131023. The next prime is 120131057. The reversal of 120131031 is 130131021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120131031 - 2³ = 120131023 is a prime.

It is a super-2 number, since 2×120131031² = 28862929218245922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120130998 and 120131016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120131731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8980 + ... + 17913.

It is an arithmetic number, because the mean of its divisors is an integer number (20036030).

Almost surely, 2^120131031 is an apocalyptic number.

120131031 is a deficient number, since it is larger than the sum of its proper divisors (40157209).

120131031 is a wasteful number, since it uses less digits than its factorization.

120131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28385.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 120131031 is about 10960.4302379058. The cubic root of 120131031 is about 493.4218774700.

Adding to 120131031 its reverse (130131021), we get a palindrome (250262052).

The spelling of 120131031 in words is "one hundred twenty million, one hundred thirty-one thousand, thirty-one".