14443213021 has 2 divisors, whose sum is σ = 14443213022. Its totient is φ = 14443213020.

The previous prime is 14443213013. The next prime is 14443213067. The reversal of 14443213021 is 12031234441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13658596900 + 784616121 = 116870^2 + 28011^2 .

It is a cyclic number.

It is not a de Polignac number, because 14443213021 - 2³ = 14443213013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14443213091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7221606510 + 7221606511.

It is an arithmetic number, because the mean of its divisors is an integer number (7221606511).

Almost surely, 2^14443213021 is an apocalyptic number.

It is an amenable number.

14443213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14443213021 is an equidigital number, since it uses as much as digits as its factorization.

14443213021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 14443213021 its reverse (12031234441), we get a palindrome (26474447462).

The spelling of 14443213021 in words is "fourteen billion, four hundred forty-three million, two hundred thirteen thousand, twenty-one".