213201021323 has 2 divisors, whose sum is σ = 213201021324. Its totient is φ = 213201021322.

The previous prime is 213201021251. The next prime is 213201021443. The reversal of 213201021323 is 323120102312.

213201021323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213201021323 - 2¹⁶ = 213200955787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213201021295 and 213201021304.

It is not a weakly prime, because it can be changed into another prime (213201021223) 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, 106600510661 + 106600510662.

It is an arithmetic number, because the mean of its divisors is an integer number (106600510662).

Almost surely, 2^213201021323 is an apocalyptic number.

213201021323 is a deficient number, since it is larger than the sum of its proper divisors (1).

213201021323 is an equidigital number, since it uses as much as digits as its factorization.

213201021323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213201021323 its reverse (323120102312), we get a palindrome (536321123635).

The spelling of 213201021323 in words is "two hundred thirteen billion, two hundred one million, twenty-one thousand, three hundred twenty-three".