120210491 has 2 divisors, whose sum is σ = 120210492. Its totient is φ = 120210490.

The previous prime is 120210479. The next prime is 120210509. The reversal of 120210491 is 194012021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120210491 is a prime.

It is a super-2 number, since 2×120210491² = 28901124292922162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120210421) 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 as a sum of consecutive naturals, namely, 60105245 + 60105246.

It is an arithmetic number, because the mean of its divisors is an integer number (60105246).

Almost surely, 2^120210491 is an apocalyptic number.

120210491 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210491 is an equidigital number, since it uses as much as digits as its factorization.

120210491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 120210491 is about 10964.0544963987. The cubic root of 120210491 is about 493.5306438749.

The spelling of 120210491 in words is "one hundred twenty million, two hundred ten thousand, four hundred ninety-one".