213441320 has 16 divisors (see below), whose sum is σ = 480243060. Its totient is φ = 85376512.

The previous prime is 213441317. The next prime is 213441323. The reversal of 213441320 is 23144312.

213441320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213441317) and next prime (213441323).

It can be written as a sum of positive squares in 2 ways, for example, as 194379364 + 19061956 = 13942^2 + 4366^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 213441292 and 213441301.

It is not an unprimeable number, because it can be changed into a prime (213441323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2667977 + ... + 2668056.

Almost surely, 2^213441320 is an apocalyptic number.

213441320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213441320 is an abundant number, since it is smaller than the sum of its proper divisors (266801740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213441320 is a wasteful number, since it uses less digits than its factorization.

213441320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336044 (or 5336040 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213441320 is about 14609.6310699483. The cubic root of 213441320 is about 597.6214350264.

Adding to 213441320 its reverse (23144312), we get a palindrome (236585632).

The spelling of 213441320 in words is "two hundred thirteen million, four hundred forty-one thousand, three hundred twenty".