1111110993809 has 2 divisors, whose sum is σ = 1111110993810. Its totient is φ = 1111110993808.

The previous prime is 1111110993803. The next prime is 1111110993827. The reversal of 1111110993809 is 9083990111111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559396293184 + 551714700625 = 747928^2 + 742775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111110993809 - 2⁴ = 1111110993793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111110993809.

It is not a weakly prime, because it can be changed into another prime (1111110993803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555555496904 + 555555496905.

It is an arithmetic number, because the mean of its divisors is an integer number (555555496905).

Almost surely, 2^{1111110993809} is an apocalyptic number.

It is an amenable number.

1111110993809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111110993809 is an equidigital number, since it uses as much as digits as its factorization.

1111110993809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 44.

The spelling of 1111110993809 in words is "one trillion, one hundred eleven billion, one hundred ten million, nine hundred ninety-three thousand, eight hundred nine".