1321454401 has 2 divisors, whose sum is σ = 1321454402. Its totient is φ = 1321454400.

The previous prime is 1321454383. The next prime is 1321454411. The reversal of 1321454401 is 1044541231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313337600 + 8116801 = 36240^2 + 2849^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321454401 - 2⁷ = 1321454273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321454411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660727200 + 660727201.

It is an arithmetic number, because the mean of its divisors is an integer number (660727201).

Almost surely, 2^1321454401 is an apocalyptic number.

It is an amenable number.

1321454401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321454401 is an equidigital number, since it uses as much as digits as its factorization.

1321454401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1321454401 is about 36351.8142738433. The cubic root of 1321454401 is about 1097.3640468578.

Adding to 1321454401 its reverse (1044541231), we get a palindrome (2365995632).

The spelling of 1321454401 in words is "one billion, three hundred twenty-one million, four hundred fifty-four thousand, four hundred one".