21302311332229 has 2 divisors, whose sum is σ = 21302311332230. Its totient is φ = 21302311332228.

The previous prime is 21302311332167. The next prime is 21302311332299. The reversal of 21302311332229 is 92223311320312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13092109363204 + 8210201969025 = 3618302^2 + 2865345^2 .

It is a cyclic number.

It is not a de Polignac number, because 21302311332229 - 2¹⁹ = 21302310807941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21302311332194 and 21302311332203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302311332299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651155666114 + 10651155666115.

It is an arithmetic number, because the mean of its divisors is an integer number (10651155666115).

Almost surely, 2^{21302311332229} is an apocalyptic number.

It is an amenable number.

21302311332229 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302311332229 is an equidigital number, since it uses as much as digits as its factorization.

21302311332229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 21302311332229 in words is "twenty-one trillion, three hundred two billion, three hundred eleven million, three hundred thirty-two thousand, two hundred twenty-nine".