1234320401 has 2 divisors, whose sum is σ = 1234320402. Its totient is φ = 1234320400.

The previous prime is 1234320391. The next prime is 1234320403. The reversal of 1234320401 is 1040234321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000077376 + 234243025 = 31624^2 + 15305^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234320401 - 2¹⁴ = 1234304017 is a prime.

It is a Sophie Germain prime.

Together with 1234320403, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1234320403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617160200 + 617160201.

It is an arithmetic number, because the mean of its divisors is an integer number (617160201).

Almost surely, 2^1234320401 is an apocalyptic number.

It is an amenable number.

1234320401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234320401 is an equidigital number, since it uses as much as digits as its factorization.

1234320401 is an evil number, because the sum of its binary digits is even.

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

The square root of 1234320401 is about 35132.8962796977. The cubic root of 1234320401 is about 1072.6942904493.

Adding to 1234320401 its reverse (1040234321), we get a palindrome (2274554722).

The spelling of 1234320401 in words is "one billion, two hundred thirty-four million, three hundred twenty thousand, four hundred one".