22031230289 has 2 divisors, whose sum is σ = 22031230290. Its totient is φ = 22031230288.

The previous prime is 22031230283. The next prime is 22031230327. The reversal of 22031230289 is 98203213022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21589894225 + 441336064 = 146935^2 + 21008^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031230289 - 2¹² = 22031226193 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031230283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015615144 + 11015615145.

It is an arithmetic number, because the mean of its divisors is an integer number (11015615145).

Almost surely, 2^22031230289 is an apocalyptic number.

It is an amenable number.

22031230289 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031230289 is an equidigital number, since it uses as much as digits as its factorization.

22031230289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 22031230289 in words is "twenty-two billion, thirty-one million, two hundred thirty thousand, two hundred eighty-nine".