120972331 has 4 divisors (see below), whose sum is σ = 121048312. Its totient is φ = 120896352.

The previous prime is 120972329. The next prime is 120972337. The reversal of 120972331 is 133279021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133279021 = 383 ⋅347987.

It is a cyclic number.

It is not a de Polignac number, because 120972331 - 2¹ = 120972329 is a prime.

It is a super-2 number, since 2×120972331² = 29268609735147122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120972331.

It is not an unprimeable number, because it can be changed into a prime (120972337) 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, 35550 + ... + 38803.

It is an arithmetic number, because the mean of its divisors is an integer number (30262078).

Almost surely, 2^120972331 is an apocalyptic number.

120972331 is a deficient number, since it is larger than the sum of its proper divisors (75981).

120972331 is an equidigital number, since it uses as much as digits as its factorization.

120972331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75980.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 120972331 is about 10998.7422462753. The cubic root of 120972331 is about 494.5710408190.

The spelling of 120972331 in words is "one hundred twenty million, nine hundred seventy-two thousand, three hundred thirty-one".