213351323 has 4 divisors (see below), whose sum is σ = 224580360. Its totient is φ = 202122288.

The previous prime is 213351317. The next prime is 213351401. The reversal of 213351323 is 323153312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213351323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213351623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5614490 + ... + 5614527.

It is an arithmetic number, because the mean of its divisors is an integer number (56145090).

Almost surely, 2^213351323 is an apocalyptic number.

213351323 is a deficient number, since it is larger than the sum of its proper divisors (11229037).

213351323 is a wasteful number, since it uses less digits than its factorization.

213351323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229036.

The product of its digits is 1620, while the sum is 23.

The square root of 213351323 is about 14606.5506879619. The cubic root of 213351323 is about 597.5374280225.

The spelling of 213351323 in words is "two hundred thirteen million, three hundred fifty-one thousand, three hundred twenty-three".