213444043232 has 48 divisors (see below), whose sum is σ = 488388942720. Its totient is φ = 89925571968.

The previous prime is 213444043223. The next prime is 213444043249. The reversal of 213444043232 is 232340444312.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8061998 + ... + 8088429.

It is an arithmetic number, because the mean of its divisors is an integer number (10174769640).

Almost surely, 2^213444043232 is an apocalyptic number.

It is an amenable number.

213444043232 is an abundant number, since it is smaller than the sum of its proper divisors (274944899488).

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

213444043232 is a wasteful number, since it uses less digits than its factorization.

213444043232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16150503 (or 16150495 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 213444043232 its reverse (232340444312), we get a palindrome (445784487544).

The spelling of 213444043232 in words is "two hundred thirteen billion, four hundred forty-four million, forty-three thousand, two hundred thirty-two".