1323403451 has 2 divisors, whose sum is σ = 1323403452. Its totient is φ = 1323403450.

The previous prime is 1323403399. The next prime is 1323403469. The reversal of 1323403451 is 1543043231.

It is a strong prime.

It is an emirp because it is prime and its reverse (1543043231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323403451 - 2⁶ = 1323403387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323403451.

It is not a weakly prime, because it can be changed into another prime (1323403351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661701725 + 661701726.

It is an arithmetic number, because the mean of its divisors is an integer number (661701726).

Almost surely, 2^1323403451 is an apocalyptic number.

1323403451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323403451 is an equidigital number, since it uses as much as digits as its factorization.

1323403451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1323403451 is about 36378.6125491339. The cubic root of 1323403451 is about 1097.9032927878.

Adding to 1323403451 its reverse (1543043231), we get a palindrome (2866446682).

The spelling of 1323403451 in words is "one billion, three hundred twenty-three million, four hundred three thousand, four hundred fifty-one".