80099111 has 2 divisors, whose sum is σ = 80099112. Its totient is φ = 80099110.

The previous prime is 80099093. The next prime is 80099137. The reversal of 80099111 is 11199008.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80099111 is a 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 (80099141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40049555 + 40049556.

It is an arithmetic number, because the mean of its divisors is an integer number (40049556).

Almost surely, 2^80099111 is an apocalyptic number.

80099111 is a deficient number, since it is larger than the sum of its proper divisors (1).

80099111 is an equidigital number, since it uses as much as digits as its factorization.

80099111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 80099111 is about 8949.8106683885. The cubic root of 80099111 is about 431.0648047214.

The spelling of 80099111 in words is "eighty million, ninety-nine thousand, one hundred eleven".