213243331132 has 96 divisors (see below), whose sum is σ = 411802272000. Its totient is φ = 96019402752.

The previous prime is 213243331087. The next prime is 213243331139. The reversal of 213243331132 is 231133342312.

It is a self number, because there is not a number n which added to its sum of digits gives 213243331132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213243331139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389841283 + ... + 389841829.

It is an arithmetic number, because the mean of its divisors is an integer number (4289607000).

Almost surely, 2^213243331132 is an apocalyptic number.

It is an amenable number.

213243331132 is a deficient number, since it is larger than the sum of its proper divisors (198558940868).

213243331132 is a wasteful number, since it uses less digits than its factorization.

213243331132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1353 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 213243331132 its reverse (231133342312), we get a palindrome (444376673444).

The spelling of 213243331132 in words is "two hundred thirteen billion, two hundred forty-three million, three hundred thirty-one thousand, one hundred thirty-two".