120533231 has 16 divisors (see below), whose sum is σ = 149495808. Its totient is φ = 94629600.

The previous prime is 120533219. The next prime is 120533243. The reversal of 120533231 is 132335021.

It is an interprime number because it is at equal distance from previous prime (120533219) and next prime (120533243).

It is not a de Polignac number, because 120533231 - 2²² = 116338927 is a prime.

It is a super-2 number, since 2×120533231² = 29056519550598722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120533261) 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 15 ways as a sum of consecutive naturals, for example, 6866 + ... + 16976.

It is an arithmetic number, because the mean of its divisors is an integer number (9343488).

Almost surely, 2^120533231 is an apocalyptic number.

120533231 is a deficient number, since it is larger than the sum of its proper divisors (28962577).

120533231 is a wasteful number, since it uses less digits than its factorization.

120533231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 120533231 is about 10978.7627262820. The cubic root of 120533231 is about 493.9719246776.

Adding to 120533231 its reverse (132335021), we get a palindrome (252868252).

The spelling of 120533231 in words is "one hundred twenty million, five hundred thirty-three thousand, two hundred thirty-one".