21010032332213 has 2 divisors, whose sum is σ = 21010032332214. Its totient is φ = 21010032332212.

The previous prime is 21010032332153. The next prime is 21010032332243. The reversal of 21010032332213 is 31223323001012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20944965505489 + 65066826724 = 4576567^2 + 255082^2 .

It is a cyclic number.

It is not a de Polignac number, because 21010032332213 - 2¹⁴ = 21010032315829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010032332243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505016166106 + 10505016166107.

It is an arithmetic number, because the mean of its divisors is an integer number (10505016166107).

Almost surely, 2^{21010032332213} is an apocalyptic number.

It is an amenable number.

21010032332213 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010032332213 is an equidigital number, since it uses as much as digits as its factorization.

21010032332213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21010032332213 its reverse (31223323001012), we get a palindrome (52233355333225).

The spelling of 21010032332213 in words is "twenty-one trillion, ten billion, thirty-two million, three hundred thirty-two thousand, two hundred thirteen".