90910001101 has 8 divisors (see below), whose sum is σ = 91627560344. Its totient is φ = 90194195520.

The previous prime is 90910001093. The next prime is 90910001191. The reversal of 90910001101 is 10110001909.

It can be written as a sum of positive squares in 4 ways, for example, as 2447775625 + 88462225476 = 49475^2 + 297426^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90910001101 - 2³ = 90910001093 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 (90910001191) 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, 334230 + ... + 541783.

It is an arithmetic number, because the mean of its divisors is an integer number (11453445043).

Almost surely, 2^90910001101 is an apocalyptic number.

It is an amenable number.

90910001101 is a deficient number, since it is larger than the sum of its proper divisors (717559243).

90910001101 is a wasteful number, since it uses less digits than its factorization.

90910001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876831.

The product of its (nonzero) digits is 81, while the sum is 22.

The spelling of 90910001101 in words is "ninety billion, nine hundred ten million, one thousand, one hundred one".