120631317 has 8 divisors (see below), whose sum is σ = 160897440. Its totient is φ = 80393040.

The previous prime is 120631309. The next prime is 120631319. The reversal of 120631317 is 713136021.

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

It is not a de Polignac number, because 120631317 - 2³ = 120631309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120631319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7359 + ... + 17187.

It is an arithmetic number, because the mean of its divisors is an integer number (20112180).

Almost surely, 2^120631317 is an apocalyptic number.

It is an amenable number.

120631317 is a deficient number, since it is larger than the sum of its proper divisors (40266123).

120631317 is an equidigital number, since it uses as much as digits as its factorization.

120631317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13923.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 120631317 is about 10983.2288968226. The cubic root of 120631317 is about 494.1058810782.

Adding to 120631317 its reverse (713136021), we get a palindrome (833767338).

It can be divided in two parts, 1206 and 31317, that added together give a palindrome (32523).

The spelling of 120631317 in words is "one hundred twenty million, six hundred thirty-one thousand, three hundred seventeen".