213313233 has 16 divisors (see below), whose sum is σ = 325463040. Its totient is φ = 121737936.

The previous prime is 213313223. The next prime is 213313253. The reversal of 213313233 is 332313312.

It is not a de Polignac number, because 213313233 - 2⁸ = 213312977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (213313223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11566 + ... + 23672.

It is an arithmetic number, because the mean of its divisors is an integer number (20341440).

Almost surely, 2^213313233 is an apocalyptic number.

It is an amenable number.

213313233 is a deficient number, since it is larger than the sum of its proper divisors (112149807).

213313233 is a wasteful number, since it uses less digits than its factorization.

213313233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956.

The product of its digits is 972, while the sum is 21.

The square root of 213313233 is about 14605.2467627219. The cubic root of 213313233 is about 597.5018660913.

Adding to 213313233 its reverse (332313312), we get a palindrome (545626545).

The spelling of 213313233 in words is "two hundred thirteen million, three hundred thirteen thousand, two hundred thirty-three".