1323130049 has 2 divisors, whose sum is σ = 1323130050. Its totient is φ = 1323130048.

The previous prime is 1323129979. The next prime is 1323130079. The reversal of 1323130049 is 9400313231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 908600449 + 414529600 = 30143^2 + 20360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323130049 - 2²⁴ = 1306352833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323130079) 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, 661565024 + 661565025.

It is an arithmetic number, because the mean of its divisors is an integer number (661565025).

Almost surely, 2^1323130049 is an apocalyptic number.

It is an amenable number.

1323130049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323130049 is an equidigital number, since it uses as much as digits as its factorization.

1323130049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1323130049 is about 36374.8546251391. The cubic root of 1323130049 is about 1097.8276822779.

The spelling of 1323130049 in words is "one billion, three hundred twenty-three million, one hundred thirty thousand, forty-nine".