14243020004021 has 2 divisors, whose sum is σ = 14243020004022. Its totient is φ = 14243020004020.

The previous prime is 14243020003963. The next prime is 14243020004051. The reversal of 14243020004021 is 12040002034241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11113255659025 + 3129764344996 = 3333655^2 + 1769114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14243020004021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14243020004051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7121510002010 + 7121510002011.

It is an arithmetic number, because the mean of its divisors is an integer number (7121510002011).

Almost surely, 2^{14243020004021} is an apocalyptic number.

It is an amenable number.

14243020004021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14243020004021 is an equidigital number, since it uses as much as digits as its factorization.

14243020004021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 14243020004021 its reverse (12040002034241), we get a palindrome (26283022038262).

The spelling of 14243020004021 in words is "fourteen trillion, two hundred forty-three billion, twenty million, four thousand, twenty-one".