21223314341 has 2 divisors, whose sum is σ = 21223314342. Its totient is φ = 21223314340.

The previous prime is 21223314263. The next prime is 21223314353. The reversal of 21223314341 is 14341332212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20922465316 + 300849025 = 144646^2 + 17345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21223314341 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21223314341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223314841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611657170 + 10611657171.

It is an arithmetic number, because the mean of its divisors is an integer number (10611657171).

Almost surely, 2^21223314341 is an apocalyptic number.

It is an amenable number.

21223314341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223314341 is an equidigital number, since it uses as much as digits as its factorization.

21223314341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

Adding to 21223314341 its reverse (14341332212), we get a palindrome (35564646553).

The spelling of 21223314341 in words is "twenty-one billion, two hundred twenty-three million, three hundred fourteen thousand, three hundred forty-one".