120120310021 has 4 divisors (see below), whose sum is σ = 120140748000. Its totient is φ = 120099872044.

The previous prime is 120120310003. The next prime is 120120310049. The reversal of 120120310021 is 120013021021.

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 120120310021 - 2⁷ = 120120309893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120309983 and 120120310010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120310621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10210171 + ... + 10221928.

It is an arithmetic number, because the mean of its divisors is an integer number (30035187000).

Almost surely, 2^120120310021 is an apocalyptic number.

It is an amenable number.

120120310021 is a deficient number, since it is larger than the sum of its proper divisors (20437979).

120120310021 is an equidigital number, since it uses as much as digits as its factorization.

120120310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20437978.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120120310021 its reverse (120013021021), we get a palindrome (240133331042).

The spelling of 120120310021 in words is "one hundred twenty billion, one hundred twenty million, three hundred ten thousand, twenty-one".