120724231 has 2 divisors, whose sum is σ = 120724232. Its totient is φ = 120724230.

The previous prime is 120724193. The next prime is 120724277. The reversal of 120724231 is 132427021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120724231 - 2⁷ = 120724103 is a prime.

It is a super-2 number, since 2×120724231² = 29148679901082722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120724031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60362115 + 60362116.

It is an arithmetic number, because the mean of its divisors is an integer number (60362116).

Almost surely, 2^120724231 is an apocalyptic number.

120724231 is a deficient number, since it is larger than the sum of its proper divisors (1).

120724231 is an equidigital number, since it uses as much as digits as its factorization.

120724231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 120724231 is about 10987.4578952549. The cubic root of 120724231 is about 494.2327071050.

The spelling of 120724231 in words is "one hundred twenty million, seven hundred twenty-four thousand, two hundred thirty-one".