1111105339691 has 2 divisors, whose sum is σ = 1111105339692. Its totient is φ = 1111105339690.

The previous prime is 1111105339639. The next prime is 1111105339703. The reversal of 1111105339691 is 1969335011111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111105339691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111105339601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555552669845 + 555552669846.

It is an arithmetic number, because the mean of its divisors is an integer number (555552669846).

Almost surely, 2^{1111105339691} is an apocalyptic number.

1111105339691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111105339691 is an equidigital number, since it uses as much as digits as its factorization.

1111105339691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 41.

The spelling of 1111105339691 in words is "one trillion, one hundred eleven billion, one hundred five million, three hundred thirty-nine thousand, six hundred ninety-one".