213323401 has 2 divisors, whose sum is σ = 213323402. Its totient is φ = 213323400.

The previous prime is 213323399. The next prime is 213323417. The reversal of 213323401 is 104323312.

213323401 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 can be written as a sum of positive squares in only one way, i.e., 171086400 + 42237001 = 13080^2 + 6499^2 .

It is a cyclic number.

It is not a de Polignac number, because 213323401 - 2¹ = 213323399 is a prime.

Together with 213323399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213323441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106661700 + 106661701.

It is an arithmetic number, because the mean of its divisors is an integer number (106661701).

Almost surely, 2^213323401 is an apocalyptic number.

It is an amenable number.

213323401 is a deficient number, since it is larger than the sum of its proper divisors (1).

213323401 is an equidigital number, since it uses as much as digits as its factorization.

213323401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213323401 is about 14605.5948526583. The cubic root of 213323401 is about 597.5113596458.

Adding to 213323401 its reverse (104323312), we get a palindrome (317646713).

The spelling of 213323401 in words is "two hundred thirteen million, three hundred twenty-three thousand, four hundred one".