120452420021 has 4 divisors (see below), whose sum is σ = 120458125344. Its totient is φ = 120446714700.

The previous prime is 120452419961. The next prime is 120452420029. The reversal of 120452420021 is 120024254021.

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 a cyclic number.

It is not a de Polignac number, because 120452420021 - 2¹⁰ = 120452418997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120452420029) 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, 2820875 + ... + 2863256.

It is an arithmetic number, because the mean of its divisors is an integer number (30114531336).

Almost surely, 2^120452420021 is an apocalyptic number.

It is an amenable number.

120452420021 is a deficient number, since it is larger than the sum of its proper divisors (5705323).

120452420021 is an equidigital number, since it uses as much as digits as its factorization.

120452420021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705322.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 120452420021 its reverse (120024254021), we get a palindrome (240476674042).

The spelling of 120452420021 in words is "one hundred twenty billion, four hundred fifty-two million, four hundred twenty thousand, twenty-one".