120013031 has 4 divisors (see below), whose sum is σ = 120102192. Its totient is φ = 119923872.

The previous prime is 120013009. The next prime is 120013051. The reversal of 120013031 is 130310021.

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

It is a cyclic number.

It is not a de Polignac number, because 120013031 - 2¹⁰ = 120012007 is a prime.

It is a super-2 number, since 2×120013031² = 28806255219613922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120013001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42530 + ... + 45263.

It is an arithmetic number, because the mean of its divisors is an integer number (30025548).

Almost surely, 2^120013031 is an apocalyptic number.

120013031 is a deficient number, since it is larger than the sum of its proper divisors (89161).

120013031 is an equidigital number, since it uses as much as digits as its factorization.

120013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89160.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 120013031 is about 10955.0459150110. The cubic root of 120013031 is about 493.2602682252.

Adding to 120013031 its reverse (130310021), we get a palindrome (250323052).

The spelling of 120013031 in words is "one hundred twenty million, thirteen thousand, thirty-one".