120931131 has 16 divisors (see below), whose sum is σ = 168291360. Its totient is φ = 77145600.

The previous prime is 120931127. The next prime is 120931159. The reversal of 120931131 is 131139021.

It is not a de Polignac number, because 120931131 - 2² = 120931127 is a prime.

It is a super-2 number, since 2×120931131² = 29248676889878322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120931098 and 120931107.

It is not an unprimeable number, because it can be changed into a prime (120931121) 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, 3681 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (10518210).

Almost surely, 2^120931131 is an apocalyptic number.

120931131 is a deficient number, since it is larger than the sum of its proper divisors (47360229).

120931131 is a wasteful number, since it uses less digits than its factorization.

120931131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12446.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 120931131 is about 10996.8691453522. The cubic root of 120931131 is about 494.5148884731.

The spelling of 120931131 in words is "one hundred twenty million, nine hundred thirty-one thousand, one hundred thirty-one".