213204400223 has 2 divisors, whose sum is σ = 213204400224. Its totient is φ = 213204400222.

The previous prime is 213204400169. The next prime is 213204400229. The reversal of 213204400223 is 322004402312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213204400223 - 2¹² = 213204396127 is a prime.

It is a super-2 number, since 2×213204400223² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213204400229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106602200111 + 106602200112.

It is an arithmetic number, because the mean of its divisors is an integer number (106602200112).

Almost surely, 2^213204400223 is an apocalyptic number.

213204400223 is a deficient number, since it is larger than the sum of its proper divisors (1).

213204400223 is an equidigital number, since it uses as much as digits as its factorization.

213204400223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 213204400223 its reverse (322004402312), we get a palindrome (535208802535).

The spelling of 213204400223 in words is "two hundred thirteen billion, two hundred four million, four hundred thousand, two hundred twenty-three".