120911291 has 2 divisors, whose sum is σ = 120911292. Its totient is φ = 120911290.

The previous prime is 120911279. The next prime is 120911309. The reversal of 120911291 is 192119021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120911291 - 2¹⁰ = 120910267 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120911291.

It is not a weakly prime, because it can be changed into another prime (120911221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60455645 + 60455646.

It is an arithmetic number, because the mean of its divisors is an integer number (60455646).

Almost surely, 2^120911291 is an apocalyptic number.

120911291 is a deficient number, since it is larger than the sum of its proper divisors (1).

120911291 is an equidigital number, since it uses as much as digits as its factorization.

120911291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 120911291 is about 10995.9670334173. The cubic root of 120911291 is about 494.4878435705.

The spelling of 120911291 in words is "one hundred twenty million, nine hundred eleven thousand, two hundred ninety-one".