21332023313 has 2 divisors, whose sum is σ = 21332023314. Its totient is φ = 21332023312.

The previous prime is 21332023199. The next prime is 21332023337. The reversal of 21332023313 is 31332023312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10754312209 + 10577711104 = 103703^2 + 102848^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332023313 - 2¹⁸ = 21331761169 is a prime.

It is not a weakly prime, because it can be changed into another prime (21332023613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666011656 + 10666011657.

It is an arithmetic number, because the mean of its divisors is an integer number (10666011657).

Almost surely, 2^21332023313 is an apocalyptic number.

It is an amenable number.

21332023313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332023313 is an equidigital number, since it uses as much as digits as its factorization.

21332023313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21332023313 its reverse (31332023312), we get a palindrome (52664046625).

Subtracting 21332023313 from its reverse (31332023312), we obtain a palindrome (9999999999).

The spelling of 21332023313 in words is "twenty-one billion, three hundred thirty-two million, twenty-three thousand, three hundred thirteen".