1323321401 has 2 divisors, whose sum is σ = 1323321402. Its totient is φ = 1323321400.

The previous prime is 1323321383. The next prime is 1323321421. The reversal of 1323321401 is 1041233231.

It is an a-pointer prime, because the next prime (1323321421) can be obtained adding 1323321401 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1320595600 + 2725801 = 36340^2 + 1651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323321401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661660700 + 661660701.

It is an arithmetic number, because the mean of its divisors is an integer number (661660701).

Almost surely, 2^1323321401 is an apocalyptic number.

It is an amenable number.

1323321401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323321401 is an equidigital number, since it uses as much as digits as its factorization.

1323321401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1323321401 is about 36377.4848086010. The cubic root of 1323321401 is about 1097.8806025979.

Adding to 1323321401 its reverse (1041233231), we get a palindrome (2364554632).

The spelling of 1323321401 in words is "one billion, three hundred twenty-three million, three hundred twenty-one thousand, four hundred one".