120371021 has 2 divisors, whose sum is σ = 120371022. Its totient is φ = 120371020.

The previous prime is 120370979. The next prime is 120371051. The reversal of 120371021 is 120173021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65448100 + 54922921 = 8090^2 + 7411^2 .

It is an emirp because it is prime and its reverse (120173021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120371021 - 2²² = 116176717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120371051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60185510 + 60185511.

It is an arithmetic number, because the mean of its divisors is an integer number (60185511).

Almost surely, 2^120371021 is an apocalyptic number.

It is an amenable number.

120371021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120371021 is an equidigital number, since it uses as much as digits as its factorization.

120371021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 120371021 is about 10971.3727946871. The cubic root of 120371021 is about 493.7502343427.

The spelling of 120371021 in words is "one hundred twenty million, three hundred seventy-one thousand, twenty-one".