111113131099 has 2 divisors, whose sum is σ = 111113131100. Its totient is φ = 111113131098.

The previous prime is 111113131057. The next prime is 111113131121. The reversal of 111113131099 is 990131311111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111113131099 - 2⁷ = 111113130971 is a prime.

It is a super-2 number, since 2×111113131099² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111113131099.

It is not a weakly prime, because it can be changed into another prime (111113131009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556565549 + 55556565550.

It is an arithmetic number, because the mean of its divisors is an integer number (55556565550).

Almost surely, 2^111113131099 is an apocalyptic number.

111113131099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113131099 is an equidigital number, since it uses as much as digits as its factorization.

111113131099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 111113131099 in words is "one hundred eleven billion, one hundred thirteen million, one hundred thirty-one thousand, ninety-nine".