120031131 has 16 divisors (see below), whose sum is σ = 174786048. Its totient is φ = 72664800.

The previous prime is 120031111. The next prime is 120031133. The reversal of 120031131 is 131130021.

It is not a de Polignac number, because 120031131 - 2¹¹ = 120029083 is a prime.

It is a super-2 number, since 2×120031131² = 28814944818278322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120031133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42421 + ... + 45161.

It is an arithmetic number, because the mean of its divisors is an integer number (10924128).

Almost surely, 2^120031131 is an apocalyptic number.

120031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120031131 is a deficient number, since it is larger than the sum of its proper divisors (54754917).

120031131 is a wasteful number, since it uses less digits than its factorization.

120031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082.

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

The square root of 120031131 is about 10955.8719872039. The cubic root of 120031131 is about 493.2850643160.

Adding to 120031131 its reverse (131130021), we get a palindrome (251161152).

The spelling of 120031131 in words is "one hundred twenty million, thirty-one thousand, one hundred thirty-one".