120524421 has 4 divisors (see below), whose sum is σ = 160699232. Its totient is φ = 80349612.

The previous prime is 120524359. The next prime is 120524431. The reversal of 120524421 is 124425021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120524421 - 2⁷ = 120524293 is a prime.

It is a super-2 number, since 2×120524421² = 29052272114770482, 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 (120524431) 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, 20087401 + ... + 20087406.

It is an arithmetic number, because the mean of its divisors is an integer number (40174808).

Almost surely, 2^120524421 is an apocalyptic number.

It is an amenable number.

120524421 is a deficient number, since it is larger than the sum of its proper divisors (40174811).

120524421 is an equidigital number, since it uses as much as digits as its factorization.

120524421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40174810.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120524421 is about 10978.3614897670. The cubic root of 120524421 is about 493.9598892728.

Adding to 120524421 its reverse (124425021), we get a palindrome (244949442).

The spelling of 120524421 in words is "one hundred twenty million, five hundred twenty-four thousand, four hundred twenty-one".