90231233227 has 2 divisors, whose sum is σ = 90231233228. Its totient is φ = 90231233226.

The previous prime is 90231233201. The next prime is 90231233249. The reversal of 90231233227 is 72233213209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90231233227 - 2¹⁵ = 90231200459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90231233192 and 90231233201.

It is not a weakly prime, because it can be changed into another prime (90231233627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45115616613 + 45115616614.

It is an arithmetic number, because the mean of its divisors is an integer number (45115616614).

Almost surely, 2^90231233227 is an apocalyptic number.

90231233227 is a deficient number, since it is larger than the sum of its proper divisors (1).

90231233227 is an equidigital number, since it uses as much as digits as its factorization.

90231233227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

It can be divided in two parts, 902312 and 33227, that added together give a palindrome (935539).

The spelling of 90231233227 in words is "ninety billion, two hundred thirty-one million, two hundred thirty-three thousand, two hundred twenty-seven".