213343440330 has 32 divisors (see below), whose sum is σ = 515460672000. Its totient is φ = 56509760192.

The previous prime is 213343440307. The next prime is 213343440341. The reversal of 213343440330 is 33044343312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23859450 + ... + 23868389.

It is an arithmetic number, because the mean of its divisors is an integer number (16108146000).

Almost surely, 2^213343440330 is an apocalyptic number.

213343440330 is an abundant number, since it is smaller than the sum of its proper divisors (302117231670).

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

213343440330 is a wasteful number, since it uses less digits than its factorization.

213343440330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47727998.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 213343440330 its reverse (33044343312), we get a palindrome (246387783642).

The spelling of 213343440330 in words is "two hundred thirteen billion, three hundred forty-three million, four hundred forty thousand, three hundred thirty".