14321242021 has 2 divisors, whose sum is σ = 14321242022. Its totient is φ = 14321242020.

The previous prime is 14321242007. The next prime is 14321242069. The reversal of 14321242021 is 12024212341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13833052996 + 488189025 = 117614^2 + 22095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14321242021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14321241983 and 14321242001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14321242921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7160621010 + 7160621011.

It is an arithmetic number, because the mean of its divisors is an integer number (7160621011).

Almost surely, 2^14321242021 is an apocalyptic number.

It is an amenable number.

14321242021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14321242021 is an equidigital number, since it uses as much as digits as its factorization.

14321242021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 14321242021 its reverse (12024212341), we get a palindrome (26345454362).

The spelling of 14321242021 in words is "fourteen billion, three hundred twenty-one million, two hundred forty-two thousand, twenty-one".