21223314263 has 2 divisors, whose sum is σ = 21223314264. Its totient is φ = 21223314262.

The previous prime is 21223314257. The next prime is 21223314341. The reversal of 21223314263 is 36241332212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21223314263 - 2⁴ = 21223314247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223314863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611657131 + 10611657132.

It is an arithmetic number, because the mean of its divisors is an integer number (10611657132).

Almost surely, 2^21223314263 is an apocalyptic number.

21223314263 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223314263 is an equidigital number, since it uses as much as digits as its factorization.

21223314263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

Adding to 21223314263 its reverse (36241332212), we get a palindrome (57464646475).

The spelling of 21223314263 in words is "twenty-one billion, two hundred twenty-three million, three hundred fourteen thousand, two hundred sixty-three".