90224847331 has 2 divisors, whose sum is σ = 90224847332. Its totient is φ = 90224847330.

The previous prime is 90224847329. The next prime is 90224847367. The reversal of 90224847331 is 13374842209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90224847331 - 2¹ = 90224847329 is a prime.

It is a super-2 number, since 2×90224847331² (a number of 23 digits) contains 22 as substring.

Together with 90224847329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90224841331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45112423665 + 45112423666.

It is an arithmetic number, because the mean of its divisors is an integer number (45112423666).

Almost surely, 2^90224847331 is an apocalyptic number.

90224847331 is a deficient number, since it is larger than the sum of its proper divisors (1).

90224847331 is an equidigital number, since it uses as much as digits as its factorization.

90224847331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 90224847331 in words is "ninety billion, two hundred twenty-four million, eight hundred forty-seven thousand, three hundred thirty-one".