213242434320 has 80 divisors (see below), whose sum is σ = 661777857792. Its totient is φ = 56802170880.

The previous prime is 213242434309. The next prime is 213242434343. The reversal of 213242434320 is 23434242312.

It is a tau number, because it is divible by the number of its divisors (80).

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, 269017 + ... + 706296.

Almost surely, 2^213242434320 is an apocalyptic number.

213242434320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213242434320 is an abundant number, since it is smaller than the sum of its proper divisors (448535423472).

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

213242434320 is a wasteful number, since it uses less digits than its factorization.

213242434320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976240 (or 976234 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 213242434320 its reverse (23434242312), we get a palindrome (236676676632).

The spelling of 213242434320 in words is "two hundred thirteen billion, two hundred forty-two million, four hundred thirty-four thousand, three hundred twenty".