120330031 has 4 divisors (see below), whose sum is σ = 123582232. Its totient is φ = 117077832.

The previous prime is 120329999. The next prime is 120330037. The reversal of 120330031 is 130033021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130033021 = 71 ⋅1831451.

It is a cyclic number.

It is not a de Polignac number, because 120330031 - 2⁵ = 120329999 is a prime.

It is a super-2 number, since 2×120330031² = 28958632720921922, 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 = 120329993 and 120330020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120330037) 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, 1626045 + ... + 1626118.

It is an arithmetic number, because the mean of its divisors is an integer number (30895558).

Almost surely, 2^120330031 is an apocalyptic number.

120330031 is a deficient number, since it is larger than the sum of its proper divisors (3252201).

120330031 is an equidigital number, since it uses as much as digits as its factorization.

120330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252200.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 120330031 is about 10969.5045922776. The cubic root of 120330031 is about 493.6941823138.

Adding to 120330031 its reverse (130033021), we get a palindrome (250363052).

The spelling of 120330031 in words is "one hundred twenty million, three hundred thirty thousand, thirty-one".