21320060336713 has 2 divisors, whose sum is σ = 21320060336714. Its totient is φ = 21320060336712.

The previous prime is 21320060336623. The next prime is 21320060336737. The reversal of 21320060336713 is 31763306002312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10816258060864 + 10503802275849 = 3288808^2 + 3240957^2 .

It is a cyclic number.

It is not a de Polignac number, because 21320060336713 - 2¹³ = 21320060328521 is a prime.

It is a super-2 number, since 2×21320060336713² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21320060330713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660030168356 + 10660030168357.

It is an arithmetic number, because the mean of its divisors is an integer number (10660030168357).

Almost surely, 2^{21320060336713} is an apocalyptic number.

It is an amenable number.

21320060336713 is a deficient number, since it is larger than the sum of its proper divisors (1).

21320060336713 is an equidigital number, since it uses as much as digits as its factorization.

21320060336713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 21320060336713 in words is "twenty-one trillion, three hundred twenty billion, sixty million, three hundred thirty-six thousand, seven hundred thirteen".