111335397779 has 2 divisors, whose sum is σ = 111335397780. Its totient is φ = 111335397778.

The previous prime is 111335397757. The next prime is 111335397809. The reversal of 111335397779 is 977793533111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111335397779 - 2¹⁶ = 111335332243 is a prime.

It is not a weakly prime, because it can be changed into another prime (111335397709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55667698889 + 55667698890.

It is an arithmetic number, because the mean of its divisors is an integer number (55667698890).

Almost surely, 2^111335397779 is an apocalyptic number.

111335397779 is a deficient number, since it is larger than the sum of its proper divisors (1).

111335397779 is an equidigital number, since it uses as much as digits as its factorization.

111335397779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3750705, while the sum is 56.

The spelling of 111335397779 in words is "one hundred eleven billion, three hundred thirty-five million, three hundred ninety-seven thousand, seven hundred seventy-nine".