1322310989 has 2 divisors, whose sum is σ = 1322310990. Its totient is φ = 1322310988.

The previous prime is 1322310953. The next prime is 1322311007. The reversal of 1322310989 is 9890132231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939912964 + 382398025 = 30658^2 + 19555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322310989 - 2¹⁶ = 1322245453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322310889) 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, 661155494 + 661155495.

It is an arithmetic number, because the mean of its divisors is an integer number (661155495).

Almost surely, 2^1322310989 is an apocalyptic number.

It is an amenable number.

1322310989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322310989 is an equidigital number, since it uses as much as digits as its factorization.

1322310989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1322310989 is about 36363.5942805438. The cubic root of 1322310989 is about 1097.6011053193.

The spelling of 1322310989 in words is "one billion, three hundred twenty-two million, three hundred ten thousand, nine hundred eighty-nine".