990199011083 has 2 divisors, whose sum is σ = 990199011084. Its totient is φ = 990199011082.

The previous prime is 990199011079. The next prime is 990199011187. The reversal of 990199011083 is 380110991099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990199011083 - 2² = 990199011079 is a prime.

It is not a weakly prime, because it can be changed into another prime (990199011583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495099505541 + 495099505542.

It is an arithmetic number, because the mean of its divisors is an integer number (495099505542).

Almost surely, 2^990199011083 is an apocalyptic number.

990199011083 is a deficient number, since it is larger than the sum of its proper divisors (1).

990199011083 is an equidigital number, since it uses as much as digits as its factorization.

990199011083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 50.

The spelling of 990199011083 in words is "nine hundred ninety billion, one hundred ninety-nine million, eleven thousand, eighty-three".