1323210405323 has 2 divisors, whose sum is σ = 1323210405324. Its totient is φ = 1323210405322.

The previous prime is 1323210405199. The next prime is 1323210405337. The reversal of 1323210405323 is 3235040123231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323210405323 - 2⁸ = 1323210405067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323210405823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661605202661 + 661605202662.

It is an arithmetic number, because the mean of its divisors is an integer number (661605202662).

Almost surely, 2^{1323210405323} is an apocalyptic number.

1323210405323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323210405323 is an equidigital number, since it uses as much as digits as its factorization.

1323210405323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 1323210405323 its reverse (3235040123231), we get a palindrome (4558250528554).

The spelling of 1323210405323 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, four hundred five thousand, three hundred twenty-three".