14122543021 has 2 divisors, whose sum is σ = 14122543022. Its totient is φ = 14122543020.

The previous prime is 14122543013. The next prime is 14122543069. The reversal of 14122543021 is 12034522141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7640682921 + 6481860100 = 87411^2 + 80510^2 .

It is a cyclic number.

It is not a de Polignac number, because 14122543021 - 2³ = 14122543013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14122543091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7061271510 + 7061271511.

It is an arithmetic number, because the mean of its divisors is an integer number (7061271511).

Almost surely, 2^14122543021 is an apocalyptic number.

It is an amenable number.

14122543021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14122543021 is an equidigital number, since it uses as much as digits as its factorization.

14122543021 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 spelling of 14122543021 in words is "fourteen billion, one hundred twenty-two million, five hundred forty-three thousand, twenty-one".