990199002911 has 2 divisors, whose sum is σ = 990199002912. Its totient is φ = 990199002910.

The previous prime is 990199002883. The next prime is 990199002917. The reversal of 990199002911 is 119200991099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 990199002911 - 2³⁸ = 715321095967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 990199002911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990199002917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495099501455 + 495099501456.

It is an arithmetic number, because the mean of its divisors is an integer number (495099501456).

Almost surely, 2^990199002911 is an apocalyptic number.

990199002911 is a deficient number, since it is larger than the sum of its proper divisors (1).

990199002911 is an equidigital number, since it uses as much as digits as its factorization.

990199002911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 990199002911 in words is "nine hundred ninety billion, one hundred ninety-nine million, two thousand, nine hundred eleven".