213012320132 has 24 divisors (see below), whose sum is σ = 373944416664. Its totient is φ = 106171172352.

The previous prime is 213012320119. The next prime is 213012320137. The reversal of 213012320132 is 231023210312.

It can be written as a sum of positive squares in 4 ways, for example, as 35591086336 + 177421233796 = 188656^2 + 421214^2 .

It is not an unprimeable number, because it can be changed into a prime (213012320137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10392278 + ... + 10412754.

It is an arithmetic number, because the mean of its divisors is an integer number (15581017361).

Almost surely, 2^213012320132 is an apocalyptic number.

It is an amenable number.

213012320132 is a deficient number, since it is larger than the sum of its proper divisors (160932096532).

213012320132 is a wasteful number, since it uses less digits than its factorization.

213012320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28535 (or 28533 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213012320132 its reverse (231023210312), we get a palindrome (444035530444).

The spelling of 213012320132 in words is "two hundred thirteen billion, twelve million, three hundred twenty thousand, one hundred thirty-two".