199929311 has 2 divisors, whose sum is σ = 199929312. Its totient is φ = 199929310.

The previous prime is 199929307. The next prime is 199929349. The reversal of 199929311 is 113929991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199929311 - 2² = 199929307 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199929371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99964655 + 99964656.

It is an arithmetic number, because the mean of its divisors is an integer number (99964656).

Almost surely, 2^199929311 is an apocalyptic number.

199929311 is a deficient number, since it is larger than the sum of its proper divisors (1).

199929311 is an equidigital number, since it uses as much as digits as its factorization.

199929311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 44.

The square root of 199929311 is about 14139.6361692937. The cubic root of 199929311 is about 584.7346408937.

The spelling of 199929311 in words is "one hundred ninety-nine million, nine hundred twenty-nine thousand, three hundred eleven".