213411340324 has 54 divisors (see below), whose sum is σ = 470434073634. Its totient is φ = 84426451200.

The previous prime is 213411340313. The next prime is 213411340327. The reversal of 213411340324 is 423043114312.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10695282724 + 202716057600 = 103418^2 + 450240^2 .

It is a super-2 number, since 2×213411340324² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 213411340292 and 213411340301.

It is not an unprimeable number, because it can be changed into a prime (213411340327) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3188277 + ... + 3254524.

Almost surely, 2^213411340324 is an apocalyptic number.

It is an amenable number.

213411340324 is an abundant number, since it is smaller than the sum of its proper divisors (257022733310).

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

213411340324 is a wasteful number, since it uses less digits than its factorization.

213411340324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442845 (or 6442823 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 213411340324 its reverse (423043114312), we get a palindrome (636454454636).

The spelling of 213411340324 in words is "two hundred thirteen billion, four hundred eleven million, three hundred forty thousand, three hundred twenty-four".