111503902117 has 2 divisors, whose sum is σ = 111503902118. Its totient is φ = 111503902116.

The previous prime is 111503902079. The next prime is 111503902123. The reversal of 111503902117 is 711209305111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92008482241 + 19495419876 = 303329^2 + 139626^2 .

It is an emirp because it is prime and its reverse (711209305111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111503902117 - 2⁷ = 111503901989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111503902177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55751951058 + 55751951059.

It is an arithmetic number, because the mean of its divisors is an integer number (55751951059).

Almost surely, 2^111503902117 is an apocalyptic number.

It is an amenable number.

111503902117 is a deficient number, since it is larger than the sum of its proper divisors (1).

111503902117 is an equidigital number, since it uses as much as digits as its factorization.

111503902117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 31.

The spelling of 111503902117 in words is "one hundred eleven billion, five hundred three million, nine hundred two thousand, one hundred seventeen".