90213111223 has 4 divisors (see below), whose sum is σ = 91056224520. Its totient is φ = 89369997928.

The previous prime is 90213111187. The next prime is 90213111281. The reversal of 90213111223 is 32211131209.

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

It is a cyclic number.

It is not a de Polignac number, because 90213111223 - 2⁹ = 90213110711 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 (90213111323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421556488 + ... + 421556701.

It is an arithmetic number, because the mean of its divisors is an integer number (22764056130).

Almost surely, 2^90213111223 is an apocalyptic number.

90213111223 is a deficient number, since it is larger than the sum of its proper divisors (843113297).

90213111223 is a wasteful number, since it uses less digits than its factorization.

90213111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843113296.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 90213111223 in words is "ninety billion, two hundred thirteen million, one hundred eleven thousand, two hundred twenty-three".