90909301211 has 4 divisors (see below), whose sum is σ = 90921565512. Its totient is φ = 90897036912.

The previous prime is 90909301183. The next prime is 90909301261. The reversal of 90909301211 is 11210390909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90909301211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90909301261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6121025 + ... + 6135858.

It is an arithmetic number, because the mean of its divisors is an integer number (22730391378).

Almost surely, 2^90909301211 is an apocalyptic number.

90909301211 is a deficient number, since it is larger than the sum of its proper divisors (12264301).

90909301211 is a wasteful number, since it uses less digits than its factorization.

90909301211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264300.

The product of its (nonzero) digits is 4374, while the sum is 35.

The spelling of 90909301211 in words is "ninety billion, nine hundred nine million, three hundred one thousand, two hundred eleven".