111011099939 has 2 divisors, whose sum is σ = 111011099940. Its totient is φ = 111011099938.

The previous prime is 111011099921. The next prime is 111011100029. The reversal of 111011099939 is 939990110111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111011099939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111011099939.

It is not a weakly prime, because it can be changed into another prime (111011099909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505549969 + 55505549970.

It is an arithmetic number, because the mean of its divisors is an integer number (55505549970).

Almost surely, 2^111011099939 is an apocalyptic number.

111011099939 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011099939 is an equidigital number, since it uses as much as digits as its factorization.

111011099939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 44.

The spelling of 111011099939 in words is "one hundred eleven billion, eleven million, ninety-nine thousand, nine hundred thirty-nine".