90020122311 has 8 divisors (see below), whose sum is σ = 137173519744. Its totient is φ = 51440069880.

The previous prime is 90020122279. The next prime is 90020122333. The reversal of 90020122311 is 11322102009.

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

It is not a de Polignac number, because 90020122311 - 2⁵ = 90020122279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 4286672491 = 90020122311 / (9 + 0 + 0 + 2 + 0 + 1 + 2 + 2 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90020122111) 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, 2143336225 + ... + 2143336266.

It is an arithmetic number, because the mean of its divisors is an integer number (17146689968).

Almost surely, 2^90020122311 is an apocalyptic number.

90020122311 is a deficient number, since it is larger than the sum of its proper divisors (47153397433).

90020122311 is a wasteful number, since it uses less digits than its factorization.

90020122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286672501.

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 90020122311 in words is "ninety billion, twenty million, one hundred twenty-two thousand, three hundred eleven".