20414243011321 has 2 divisors, whose sum is σ = 20414243011322. Its totient is φ = 20414243011320.

The previous prime is 20414243011297. The next prime is 20414243011411. The reversal of 20414243011321 is 12311034241402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20135538205696 + 278704805625 = 4487264^2 + 527925^2 .

It is a cyclic number.

It is not a de Polignac number, because 20414243011321 - 2⁹ = 20414243010809 is a prime.

It is a super-3 number, since 3×20414243011321³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20414243011321.

It is not a weakly prime, because it can be changed into another prime (20414243015321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207121505660 + 10207121505661.

It is an arithmetic number, because the mean of its divisors is an integer number (10207121505661).

Almost surely, 2^{20414243011321} is an apocalyptic number.

It is an amenable number.

20414243011321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20414243011321 is an equidigital number, since it uses as much as digits as its factorization.

20414243011321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20414243011321 its reverse (12311034241402), we get a palindrome (32725277252723).

The spelling of 20414243011321 in words is "twenty trillion, four hundred fourteen billion, two hundred forty-three million, eleven thousand, three hundred twenty-one".