111101099999 has 2 divisors, whose sum is σ = 111101100000. Its totient is φ = 111101099998.

The previous prime is 111101099951. The next prime is 111101100017. The reversal of 111101099999 is 999990101111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111101099999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101099929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550549999 + 55550550000.

It is an arithmetic number, because the mean of its divisors is an integer number (55550550000).

Almost surely, 2^111101099999 is an apocalyptic number.

111101099999 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101099999 is an equidigital number, since it uses as much as digits as its factorization.

111101099999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59049, while the sum is 50.

The spelling of 111101099999 in words is "one hundred eleven billion, one hundred one million, ninety-nine thousand, nine hundred ninety-nine".