21322321312307 has 2 divisors, whose sum is σ = 21322321312308. Its totient is φ = 21322321312306.

The previous prime is 21322321312277. The next prime is 21322321312427. The reversal of 21322321312307 is 70321312322312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21322321312307 - 2²⁶ = 21322254203443 is a prime.

It is a super-2 number, since 2×21322321312307² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21322321312507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661160656153 + 10661160656154.

It is an arithmetic number, because the mean of its divisors is an integer number (10661160656154).

Almost surely, 2^{21322321312307} is an apocalyptic number.

21322321312307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322321312307 is an equidigital number, since it uses as much as digits as its factorization.

21322321312307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 21322321312307 its reverse (70321312322312), we get a palindrome (91643633634619).

The spelling of 21322321312307 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred twenty-one million, three hundred twelve thousand, three hundred seven".