120099691 has 2 divisors, whose sum is σ = 120099692. Its totient is φ = 120099690.

The previous prime is 120099653. The next prime is 120099719. The reversal of 120099691 is 196990021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120099691 - 2¹⁷ = 119968619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120099691.

It is not a weakly prime, because it can be changed into another prime (120099601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60049845 + 60049846.

It is an arithmetic number, because the mean of its divisors is an integer number (60049846).

Almost surely, 2^120099691 is an apocalyptic number.

120099691 is a deficient number, since it is larger than the sum of its proper divisors (1).

120099691 is an equidigital number, since it uses as much as digits as its factorization.

120099691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 120099691 is about 10959.0004562460. Note that the first 3 decimals coincide. The cubic root of 120099691 is about 493.3789654751.

The spelling of 120099691 in words is "one hundred twenty million, ninety-nine thousand, six hundred ninety-one".