120120031 has 2 divisors, whose sum is σ = 120120032. Its totient is φ = 120120030.

The previous prime is 120119999. The next prime is 120120061. The reversal of 120120031 is 130021021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120120031 - 2⁵ = 120119999 is a prime.

It is a super-2 number, since 2×120120031² = 28857643694881922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060015 + 60060016.

It is an arithmetic number, because the mean of its divisors is an integer number (60060016).

Almost surely, 2^120120031 is an apocalyptic number.

120120031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120120031 is an equidigital number, since it uses as much as digits as its factorization.

120120031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 120120031 is about 10959.9284212991. The cubic root of 120120031 is about 493.4068166755.

Adding to 120120031 its reverse (130021021), we get a palindrome (250141052).

The spelling of 120120031 in words is "one hundred twenty million, one hundred twenty thousand, thirty-one".