21322046732213 has 2 divisors, whose sum is σ = 21322046732214. Its totient is φ = 21322046732212.

The previous prime is 21322046732197. The next prime is 21322046732291. The reversal of 21322046732213 is 31223764022312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17491951146244 + 3830095585969 = 4182338^2 + 1957063^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322046732213 - 2⁴ = 21322046732197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21322046732713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661023366106 + 10661023366107.

It is an arithmetic number, because the mean of its divisors is an integer number (10661023366107).

Almost surely, 2^{21322046732213} is an apocalyptic number.

It is an amenable number.

21322046732213 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322046732213 is an equidigital number, since it uses as much as digits as its factorization.

21322046732213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 21322046732213 in words is "twenty-one trillion, three hundred twenty-two billion, forty-six million, seven hundred thirty-two thousand, two hundred thirteen".