21322332319 has 2 divisors, whose sum is σ = 21322332320. Its totient is φ = 21322332318.

The previous prime is 21322332293. The next prime is 21322332337. The reversal of 21322332319 is 91323322312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21322332319 - 2⁷ = 21322332191 is a prime.

It is a super-2 number, since 2×21322332319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21322332419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661166159 + 10661166160.

It is an arithmetic number, because the mean of its divisors is an integer number (10661166160).

Almost surely, 2^21322332319 is an apocalyptic number.

21322332319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322332319 is an equidigital number, since it uses as much as digits as its factorization.

21322332319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

It can be divided in two parts, 213223 and 32319, that added together give a palindrome (245542).

The spelling of 21322332319 in words is "twenty-one billion, three hundred twenty-two million, three hundred thirty-two thousand, three hundred nineteen".