999941311 has 2 divisors, whose sum is σ = 999941312. Its totient is φ = 999941310.

The previous prime is 999941297. The next prime is 999941323. The reversal of 999941311 is 113149999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999941311 - 2⁵ = 999941279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999941711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499970655 + 499970656.

It is an arithmetic number, because the mean of its divisors is an integer number (499970656).

Almost surely, 2^999941311 is an apocalyptic number.

999941311 is a deficient number, since it is larger than the sum of its proper divisors (1).

999941311 is an equidigital number, since it uses as much as digits as its factorization.

999941311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 46.

The square root of 999941311 is about 31621.8486335002. The cubic root of 999941311 is about 999.9804366173.

The spelling of 999941311 in words is "nine hundred ninety-nine million, nine hundred forty-one thousand, three hundred eleven".