120310021 has 8 divisors (see below), whose sum is σ = 130586624. Its totient is φ = 110179440.

The previous prime is 120310013. The next prime is 120310049. The reversal of 120310021 is 120013021.

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

It is a cyclic number.

It is not a de Polignac number, because 120310021 - 2³ = 120310013 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 (120310121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34785 + ... + 38086.

It is an arithmetic number, because the mean of its divisors is an integer number (16323328).

Almost surely, 2^120310021 is an apocalyptic number.

It is an amenable number.

120310021 is a deficient number, since it is larger than the sum of its proper divisors (10276603).

120310021 is a wasteful number, since it uses less digits than its factorization.

120310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73011.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 120310021 is about 10968.5924803504. The cubic root of 120310021 is about 493.6668148917. Note that the first 3 decimals are identical.

Adding to 120310021 its reverse (120013021), we get a palindrome (240323042).

The spelling of 120310021 in words is "one hundred twenty million, three hundred ten thousand, twenty-one".