1323112401 has 56 divisors (see below), whose sum is σ = 2152991400. Its totient is φ = 807895296.

The previous prime is 1323112393. The next prime is 1323112409. The reversal of 1323112401 is 1042113231.

It is an interprime number because it is at equal distance from previous prime (1323112393) and next prime (1323112409).

It can be written as a sum of positive squares in 4 ways, for example, as 113742225 + 1209370176 = 10665^2 + 34776^2 .

It is not a de Polignac number, because 1323112401 - 2³ = 1323112393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323112409) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1411605 + ... + 1412541.

It is an arithmetic number, because the mean of its divisors is an integer number (38446275).

Almost surely, 2^1323112401 is an apocalyptic number.

It is an amenable number.

1323112401 is a deficient number, since it is larger than the sum of its proper divisors (829878999).

1323112401 is an equidigital number, since it uses as much as digits as its factorization.

1323112401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1323112401 is about 36374.6120391682. The cubic root of 1323112401 is about 1097.8228012891.

Adding to 1323112401 its reverse (1042113231), we get a palindrome (2365225632).

The spelling of 1323112401 in words is "one billion, three hundred twenty-three million, one hundred twelve thousand, four hundred one".