213540244300 has 54 divisors (see below), whose sum is σ = 479912209868. Its totient is φ = 82470682560.

The previous prime is 213540244283. The next prime is 213540244301. The reversal of 213540244300 is 3442045312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213540244301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1185462 + ... + 1353661.

Almost surely, 2^213540244300 is an apocalyptic number.

213540244300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213540244300 is an abundant number, since it is smaller than the sum of its proper divisors (266371965568).

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

213540244300 is a wasteful number, since it uses less digits than its factorization.

213540244300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539195 (or 2539159 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 213540244300 its reverse (3442045312), we get a palindrome (216982289612).

The spelling of 213540244300 in words is "two hundred thirteen billion, five hundred forty million, two hundred forty-four thousand, three hundred".