213102223 has 16 divisors (see below), whose sum is σ = 220466880. Its totient is φ = 205920000.

The previous prime is 213102209. The next prime is 213102247. The reversal of 213102223 is 322201312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213102223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213102197 and 213102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213102283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1357261 + ... + 1357417.

It is an arithmetic number, because the mean of its divisors is an integer number (13779180).

Almost surely, 2^213102223 is an apocalyptic number.

213102223 is a deficient number, since it is larger than the sum of its proper divisors (7364657).

213102223 is a wasteful number, since it uses less digits than its factorization.

213102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213102223 is about 14598.0212015191. The cubic root of 213102223 is about 597.3047842970.

Adding to 213102223 its reverse (322201312), we get a palindrome (535303535).

The spelling of 213102223 in words is "two hundred thirteen million, one hundred two thousand, two hundred twenty-three".