21322002307 has 2 divisors, whose sum is σ = 21322002308. Its totient is φ = 21322002306.

The previous prime is 21322002283. The next prime is 21322002367. The reversal of 21322002307 is 70320022312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21322002307 - 2¹⁹ = 21321478019 is a prime.

It is not a weakly prime, because it can be changed into another prime (21322002367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661001153 + 10661001154.

It is an arithmetic number, because the mean of its divisors is an integer number (10661001154).

Almost surely, 2^21322002307 is an apocalyptic number.

21322002307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322002307 is an equidigital number, since it uses as much as digits as its factorization.

21322002307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 21322002307 its reverse (70320022312), we get a palindrome (91642024619).

The spelling of 21322002307 in words is "twenty-one billion, three hundred twenty-two million, two thousand, three hundred seven".