90111101110101 has 8 divisors (see below), whose sum is σ = 133497927570560. Its totient is φ = 60074067406716.

The previous prime is 90111101110091. The next prime is 90111101110117. The reversal of 90111101110101 is 10101110111109.

It is not a de Polignac number, because 90111101110101 - 2³⁷ = 89973662156629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90111101110181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668724094605 + ... + 1668724094658.

It is an arithmetic number, because the mean of its divisors is an integer number (16687240946320).

Almost surely, 2^{90111101110101} is an apocalyptic number.

It is an amenable number.

90111101110101 is a deficient number, since it is larger than the sum of its proper divisors (43386826460459).

90111101110101 is a wasteful number, since it uses less digits than its factorization.

90111101110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337448189272 (or 3337448189266 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 90111101110101 in words is "ninety trillion, one hundred eleven billion, one hundred one million, one hundred ten thousand, one hundred one".