1323022109 has 2 divisors, whose sum is σ = 1323022110. Its totient is φ = 1323022108.

The previous prime is 1323022097. The next prime is 1323022139. The reversal of 1323022109 is 9012203231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1225210009 + 97812100 = 35003^2 + 9890^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323022109 - 2²⁴ = 1306244893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323022139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661511054 + 661511055.

It is an arithmetic number, because the mean of its divisors is an integer number (661511055).

Almost surely, 2^1323022109 is an apocalyptic number.

It is an amenable number.

1323022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323022109 is an equidigital number, since it uses as much as digits as its factorization.

1323022109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1323022109 is about 36373.3708776077. The cubic root of 1323022109 is about 1097.7978281346.

The spelling of 1323022109 in words is "one billion, three hundred twenty-three million, twenty-two thousand, one hundred nine".