213311318 has 16 divisors (see below), whose sum is σ = 349367040. Its totient is φ = 96873000.

The previous prime is 213311311. The next prime is 213311321. The reversal of 213311318 is 813113312.

It is a junction number, because it is equal to n+sod(n) for n = 213311293 and 213311302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213311311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25343 + ... + 32693.

It is an arithmetic number, because the mean of its divisors is an integer number (21835440).

Almost surely, 2^213311318 is an apocalyptic number.

213311318 is a deficient number, since it is larger than the sum of its proper divisors (136055722).

213311318 is a wasteful number, since it uses less digits than its factorization.

213311318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683.

The product of its digits is 432, while the sum is 23.

The square root of 213311318 is about 14605.1812039427. The cubic root of 213311318 is about 597.5000780799.

The spelling of 213311318 in words is "two hundred thirteen million, three hundred eleven thousand, three hundred eighteen".