120990371 has 2 divisors, whose sum is σ = 120990372. Its totient is φ = 120990370.

The previous prime is 120990329. The next prime is 120990391. The reversal of 120990371 is 173099021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120990371 - 2¹⁰ = 120989347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (120990391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60495185 + 60495186.

It is an arithmetic number, because the mean of its divisors is an integer number (60495186).

Almost surely, 2^120990371 is an apocalyptic number.

120990371 is a deficient number, since it is larger than the sum of its proper divisors (1).

120990371 is an equidigital number, since it uses as much as digits as its factorization.

120990371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 120990371 is about 10999.5623094740. The cubic root of 120990371 is about 494.5956239008.

The spelling of 120990371 in words is "one hundred twenty million, nine hundred ninety thousand, three hundred seventy-one".