90011111110111 has 2 divisors, whose sum is σ = 90011111110112. Its totient is φ = 90011111110110.

The previous prime is 90011111110079. The next prime is 90011111110247. The reversal of 90011111110111 is 11101111111009.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90011111110111 - 2⁵ = 90011111110079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90011111116111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45005555555055 + 45005555555056.

It is an arithmetic number, because the mean of its divisors is an integer number (45005555555056).

Almost surely, 2^{90011111110111} is an apocalyptic number.

90011111110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

90011111110111 is an equidigital number, since it uses as much as digits as its factorization.

90011111110111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 19.

The spelling of 90011111110111 in words is "ninety trillion, eleven billion, one hundred eleven million, one hundred ten thousand, one hundred eleven".