1104111961691 has 2 divisors, whose sum is σ = 1104111961692. Its totient is φ = 1104111961690.

The previous prime is 1104111961679. The next prime is 1104111961817. The reversal of 1104111961691 is 1961691114011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1104111961691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1104111261691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552055980845 + 552055980846.

It is an arithmetic number, because the mean of its divisors is an integer number (552055980846).

Almost surely, 2^{1104111961691} is an apocalyptic number.

1104111961691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104111961691 is an equidigital number, since it uses as much as digits as its factorization.

1104111961691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 1104111961691 in words is "one trillion, one hundred four billion, one hundred eleven million, nine hundred sixty-one thousand, six hundred ninety-one".