111044128099 has 2 divisors, whose sum is σ = 111044128100. Its totient is φ = 111044128098.

The previous prime is 111044128079. The next prime is 111044128103. The reversal of 111044128099 is 990821440111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111044128099 - 2²⁹ = 110507257187 is a prime.

It is a super-3 number, since 3×111044128099³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (111044128009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55522064049 + 55522064050.

It is an arithmetic number, because the mean of its divisors is an integer number (55522064050).

Almost surely, 2^111044128099 is an apocalyptic number.

111044128099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111044128099 is an equidigital number, since it uses as much as digits as its factorization.

111044128099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 111044128099 in words is "one hundred eleven billion, forty-four million, one hundred twenty-eight thousand, ninety-nine".