213103233 has 48 divisors (see below), whose sum is σ = 359738496. Its totient is φ = 119059200.

The previous prime is 213103201. The next prime is 213103237. The reversal of 213103233 is 332301312.

It is not a de Polignac number, because 213103233 - 2⁵ = 213103201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213103237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680685 + ... + 680997.

It is an arithmetic number, because the mean of its divisors is an integer number (7494552).

Almost surely, 2^213103233 is an apocalyptic number.

It is an amenable number.

213103233 is a deficient number, since it is larger than the sum of its proper divisors (146635263).

213103233 is a wasteful number, since it uses less digits than its factorization.

213103233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 213103233 is about 14598.0557952078. The cubic root of 213103233 is about 597.3057279394.

Adding to 213103233 its reverse (332301312), we get a palindrome (545404545).

The spelling of 213103233 in words is "two hundred thirteen million, one hundred three thousand, two hundred thirty-three".