111564807041 has 2 divisors, whose sum is σ = 111564807042. Its totient is φ = 111564807040.

The previous prime is 111564806999. The next prime is 111564807061. The reversal of 111564807041 is 140708465111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110891664016 + 673143025 = 333004^2 + 25945^2 .

It is an emirp because it is prime and its reverse (140708465111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111564807041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111564806986 and 111564807004.

It is not a weakly prime, because it can be changed into another prime (111564807061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55782403520 + 55782403521.

It is an arithmetic number, because the mean of its divisors is an integer number (55782403521).

Almost surely, 2^111564807041 is an apocalyptic number.

It is an amenable number.

111564807041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111564807041 is an equidigital number, since it uses as much as digits as its factorization.

111564807041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 111564807041 in words is "one hundred eleven billion, five hundred sixty-four million, eight hundred seven thousand, forty-one".