120013021 has 8 divisors (see below), whose sum is σ = 122297760. Its totient is φ = 117736752.

The previous prime is 120013009. The next prime is 120013051. The reversal of 120013021 is 120310021.

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 120013021 - 2²¹ = 117915869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120012989 and 120013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120013001) 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, 31411 + ... + 35023.

It is an arithmetic number, because the mean of its divisors is an integer number (15287220).

Almost surely, 2^120013021 is an apocalyptic number.

It is an amenable number.

120013021 is a deficient number, since it is larger than the sum of its proper divisors (2284739).

120013021 is an equidigital number, since it uses as much as digits as its factorization.

120013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235.

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

The square root of 120013021 is about 10955.0454586003. The cubic root of 120013021 is about 493.2602545250.

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

The spelling of 120013021 in words is "one hundred twenty million, thirteen thousand, twenty-one".