1323042401 has 4 divisors (see below), whose sum is σ = 1323409812. Its totient is φ = 1322674992.

The previous prime is 1323042353. The next prime is 1323042421. The reversal of 1323042401 is 1042403231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042403231 = 29 ⋅35944939.

It can be written as a sum of positive squares in 2 ways, for example, as 689010001 + 634032400 = 26249^2 + 25180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323042401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323042421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178250 + ... + 185523.

It is an arithmetic number, because the mean of its divisors is an integer number (330852453).

Almost surely, 2^1323042401 is an apocalyptic number.

It is an amenable number.

1323042401 is a deficient number, since it is larger than the sum of its proper divisors (367411).

1323042401 is an equidigital number, since it uses as much as digits as its factorization.

1323042401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367410.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1323042401 is about 36373.6498168661. The cubic root of 1323042401 is about 1097.8034406383.

Adding to 1323042401 its reverse (1042403231), we get a palindrome (2365445632).

The spelling of 1323042401 in words is "one billion, three hundred twenty-three million, forty-two thousand, four hundred one".