1400321344421 has 2 divisors, whose sum is σ = 1400321344422. Its totient is φ = 1400321344420.

The previous prime is 1400321344403. The next prime is 1400321344459. The reversal of 1400321344421 is 1244431230041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815074924225 + 585246420196 = 902815^2 + 765014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400321344421 - 2¹⁰ = 1400321343397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400321344621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700160672210 + 700160672211.

It is an arithmetic number, because the mean of its divisors is an integer number (700160672211).

Almost surely, 2^{1400321344421} is an apocalyptic number.

It is an amenable number.

1400321344421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400321344421 is an equidigital number, since it uses as much as digits as its factorization.

1400321344421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1400321344421 its reverse (1244431230041), we get a palindrome (2644752574462).

The spelling of 1400321344421 in words is "one trillion, four hundred billion, three hundred twenty-one million, three hundred forty-four thousand, four hundred twenty-one".