1323252401 has 4 divisors (see below), whose sum is σ = 1323418992. Its totient is φ = 1323085812.

The previous prime is 1323252379. The next prime is 1323252457. The reversal of 1323252401 is 1042523231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1323252401 - 2¹⁸ = 1322990257 is a prime.

It is a super-3 number, since 3×1323252401³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323252481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70751 + ... + 87476.

It is an arithmetic number, because the mean of its divisors is an integer number (330854748).

Almost surely, 2^1323252401 is an apocalyptic number.

It is an amenable number.

1323252401 is a deficient number, since it is larger than the sum of its proper divisors (166591).

1323252401 is an equidigital number, since it uses as much as digits as its factorization.

1323252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166590.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1323252401 is about 36376.5364074152. The cubic root of 1323252401 is about 1097.8615205421.

Adding to 1323252401 its reverse (1042523231), we get a palindrome (2365775632).

The spelling of 1323252401 in words is "one billion, three hundred twenty-three million, two hundred fifty-two thousand, four hundred one".