120045031 has 4 divisors (see below), whose sum is σ = 120193864. Its totient is φ = 119896200.

The previous prime is 120044993. The next prime is 120045043. The reversal of 120045031 is 130540021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120045031 is a prime.

It is a super-2 number, since 2×120045031² = 28821618935581922, 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 = 120044996 and 120045014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120045071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73200 + ... + 74821.

It is an arithmetic number, because the mean of its divisors is an integer number (30048466).

Almost surely, 2^120045031 is an apocalyptic number.

120045031 is a deficient number, since it is larger than the sum of its proper divisors (148833).

120045031 is an equidigital number, since it uses as much as digits as its factorization.

120045031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148832.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 120045031 is about 10956.5063318560. The cubic root of 120045031 is about 493.3041049257.

Adding to 120045031 its reverse (130540021), we get a palindrome (250585052).

The spelling of 120045031 in words is "one hundred twenty million, forty-five thousand, thirty-one".