120424231 has 4 divisors (see below), whose sum is σ = 122073952. Its totient is φ = 118774512.

The previous prime is 120424229. The next prime is 120424247. The reversal of 120424231 is 132424021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132424021 = 179 ⋅739799.

It is a cyclic number.

It is not a de Polignac number, because 120424231 - 2¹ = 120424229 is a prime.

It is a super-2 number, since 2×120424231² = 29003990823882722, 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 = 120424199 and 120424208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120424531) 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, 824751 + ... + 824896.

It is an arithmetic number, because the mean of its divisors is an integer number (30518488).

Almost surely, 2^120424231 is an apocalyptic number.

120424231 is a deficient number, since it is larger than the sum of its proper divisors (1649721).

120424231 is an equidigital number, since it uses as much as digits as its factorization.

120424231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649720.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120424231 is about 10973.7974739832. The cubic root of 120424231 is about 493.8229777086.

Adding to 120424231 its reverse (132424021), we get a palindrome (252848252).

The spelling of 120424231 in words is "one hundred twenty million, four hundred twenty-four thousand, two hundred thirty-one".