1323231510313 has 2 divisors, whose sum is σ = 1323231510314. Its totient is φ = 1323231510312.

The previous prime is 1323231510247. The next prime is 1323231510317. The reversal of 1323231510313 is 3130151323231.

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., 1259842370329 + 63389139984 = 1122427^2 + 251772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323231510313 - 2²⁵ = 1323197955881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323231510317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661615755156 + 661615755157.

It is an arithmetic number, because the mean of its divisors is an integer number (661615755157).

Almost surely, 2^{1323231510313} is an apocalyptic number.

It is an amenable number.

1323231510313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323231510313 is an equidigital number, since it uses as much as digits as its factorization.

1323231510313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 1323231510313 its reverse (3130151323231), we get a palindrome (4453382833544).

The spelling of 1323231510313 in words is "one trillion, three hundred twenty-three billion, two hundred thirty-one million, five hundred ten thousand, three hundred thirteen".