11110202110991 has 2 divisors, whose sum is σ = 11110202110992. Its totient is φ = 11110202110990.

The previous prime is 11110202110957. The next prime is 11110202111069. The reversal of 11110202110991 is 19901120201111.

11110202110991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11110202110991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11110202110391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555101055495 + 5555101055496.

It is an arithmetic number, because the mean of its divisors is an integer number (5555101055496).

Almost surely, 2^{11110202110991} is an apocalyptic number.

11110202110991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110202110991 is an equidigital number, since it uses as much as digits as its factorization.

11110202110991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 29.

The spelling of 11110202110991 in words is "eleven trillion, one hundred ten billion, two hundred two million, one hundred ten thousand, nine hundred ninety-one".