120331231 has 4 divisors (see below), whose sum is σ = 120451032. Its totient is φ = 120211432.

The previous prime is 120331213. The next prime is 120331241. The reversal of 120331231 is 132133021.

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 120331231 - 2⁹ = 120330719 is a prime.

It is a super-2 number, since 2×120331231² = 28959210307950722, 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 (120331201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58381 + ... + 60406.

It is an arithmetic number, because the mean of its divisors is an integer number (30112758).

Almost surely, 2^120331231 is an apocalyptic number.

120331231 is a deficient number, since it is larger than the sum of its proper divisors (119801).

120331231 is a wasteful number, since it uses less digits than its factorization.

120331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119800.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 120331231 is about 10969.5592892331. The cubic root of 120331231 is about 493.6958234420.

Adding to 120331231 its reverse (132133021), we get a palindrome (252464252).

The spelling of 120331231 in words is "one hundred twenty million, three hundred thirty-one thousand, two hundred thirty-one".