14304432421 has 2 divisors, whose sum is σ = 14304432422. Its totient is φ = 14304432420.

The previous prime is 14304432377. The next prime is 14304432431. The reversal of 14304432421 is 12423440341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9897464196 + 4406968225 = 99486^2 + 66385^2 .

It is a cyclic number.

It is not a de Polignac number, because 14304432421 - 2¹⁵ = 14304399653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14304432421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14304432431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7152216210 + 7152216211.

It is an arithmetic number, because the mean of its divisors is an integer number (7152216211).

Almost surely, 2^14304432421 is an apocalyptic number.

It is an amenable number.

14304432421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14304432421 is an equidigital number, since it uses as much as digits as its factorization.

14304432421 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 28.

Adding to 14304432421 its reverse (12423440341), we get a palindrome (26727872762).

The spelling of 14304432421 in words is "fourteen billion, three hundred four million, four hundred thirty-two thousand, four hundred twenty-one".