120424431 has 8 divisors (see below), whose sum is σ = 163198384. Its totient is φ = 78966720.

The previous prime is 120424397. The next prime is 120424453. The reversal of 120424431 is 134424021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-120424431 is a prime.

It is a super-2 number, since 2×120424431² = 29004087163347522, 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 = 120424398 and 120424407.

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 7 ways as a sum of consecutive naturals, for example, 328846 + ... + 329211.

It is an arithmetic number, because the mean of its divisors is an integer number (20399798).

Almost surely, 2^120424431 is an apocalyptic number.

120424431 is a deficient number, since it is larger than the sum of its proper divisors (42773953).

120424431 is an equidigital number, since it uses as much as digits as its factorization.

120424431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658121.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 120424431 is about 10973.8065865952. The cubic root of 120424431 is about 493.8232510881.

Adding to 120424431 its reverse (134424021), we get a palindrome (254848452).

The spelling of 120424431 in words is "one hundred twenty million, four hundred twenty-four thousand, four hundred thirty-one".