111335797091 has 2 divisors, whose sum is σ = 111335797092. Its totient is φ = 111335797090.

The previous prime is 111335797049. The next prime is 111335797103. The reversal of 111335797091 is 190797533111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111335797091 is a prime.

It is not a weakly prime, because it can be changed into another prime (111335797591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55667898545 + 55667898546.

It is an arithmetic number, because the mean of its divisors is an integer number (55667898546).

Almost surely, 2^111335797091 is an apocalyptic number.

111335797091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111335797091 is an equidigital number, since it uses as much as digits as its factorization.

111335797091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 178605, while the sum is 47.

The spelling of 111335797091 in words is "one hundred eleven billion, three hundred thirty-five million, seven hundred ninety-seven thousand, ninety-one".