199385432111 has 2 divisors, whose sum is σ = 199385432112. Its totient is φ = 199385432110.

The previous prime is 199385432063. The next prime is 199385432117. The reversal of 199385432111 is 111234583991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199385432111 - 2²² = 199381237807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199385432117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99692716055 + 99692716056.

It is an arithmetic number, because the mean of its divisors is an integer number (99692716056).

Almost surely, 2^199385432111 is an apocalyptic number.

199385432111 is a deficient number, since it is larger than the sum of its proper divisors (1).

199385432111 is an equidigital number, since it uses as much as digits as its factorization.

199385432111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 47.

The spelling of 199385432111 in words is "one hundred ninety-nine billion, three hundred eighty-five million, four hundred thirty-two thousand, one hundred eleven".