111161111099 has 2 divisors, whose sum is σ = 111161111100. Its totient is φ = 111161111098.

The previous prime is 111161111077. The next prime is 111161111107. The reversal of 111161111099 is 990111161111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111161111099 is a prime.

It is not a weakly prime, because it can be changed into another prime (111161111899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55580555549 + 55580555550.

It is an arithmetic number, because the mean of its divisors is an integer number (55580555550).

Almost surely, 2^111161111099 is an apocalyptic number.

111161111099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111161111099 is an equidigital number, since it uses as much as digits as its factorization.

111161111099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 32.

The spelling of 111161111099 in words is "one hundred eleven billion, one hundred sixty-one million, one hundred eleven thousand, ninety-nine".