213443022340 has 48 divisors (see below), whose sum is σ = 456271421760. Its totient is φ = 83849834880.

The previous prime is 213443022323. The next prime is 213443022341. The reversal of 213443022340 is 43220344312.

It is a junction number, because it is equal to n+sod(n) for n = 213443022299 and 213443022308.

It is not an unprimeable number, because it can be changed into a prime (213443022341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671239 + ... + 936721.

It is an arithmetic number, because the mean of its divisors is an integer number (9505654620).

Almost surely, 2^213443022340 is an apocalyptic number.

213443022340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213443022340 is an abundant number, since it is smaller than the sum of its proper divisors (242828399420).

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

213443022340 is a wasteful number, since it uses less digits than its factorization.

213443022340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266212 (or 266210 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 213443022340 its reverse (43220344312), we get a palindrome (256663366652).

The spelling of 213443022340 in words is "two hundred thirteen billion, four hundred forty-three million, twenty-two thousand, three hundred forty".