1323203113 has 2 divisors, whose sum is σ = 1323203114. Its totient is φ = 1323203112.

The previous prime is 1323203107. The next prime is 1323203191. The reversal of 1323203113 is 3113023231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1215707689 + 107495424 = 34867^2 + 10368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323203113 - 2⁵ = 1323203081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321203113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661601556 + 661601557.

It is an arithmetic number, because the mean of its divisors is an integer number (661601557).

Almost surely, 2^1323203113 is an apocalyptic number.

It is an amenable number.

1323203113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323203113 is an equidigital number, since it uses as much as digits as its factorization.

1323203113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1323203113 is about 36375.8589314397. The cubic root of 1323203113 is about 1097.8478894640.

Adding to 1323203113 its reverse (3113023231), we get a palindrome (4436226344).

The spelling of 1323203113 in words is "one billion, three hundred twenty-three million, two hundred three thousand, one hundred thirteen".