120201091 has 2 divisors, whose sum is σ = 120201092. Its totient is φ = 120201090.

The previous prime is 120201071. The next prime is 120201119. The reversal of 120201091 is 190102021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120201091 - 2⁷ = 120200963 is a prime.

It is not a weakly prime, because it can be changed into another prime (120201031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100545 + 60100546.

It is an arithmetic number, because the mean of its divisors is an integer number (60100546).

Almost surely, 2^120201091 is an apocalyptic number.

120201091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120201091 is an equidigital number, since it uses as much as digits as its factorization.

120201091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 120201091 is about 10963.6258144831. The cubic root of 120201091 is about 493.5177794708.

The spelling of 120201091 in words is "one hundred twenty million, two hundred one thousand, ninety-one".