213223512132 has 96 divisors (see below), whose sum is σ = 586293308160. Its totient is φ = 66869763840.

The previous prime is 213223512119. The next prime is 213223512133. The reversal of 213223512132 is 231215322312.

213223512132 is a `hidden beast` number, since 2 + 13 + 2 + 2 + 3 + 512 + 132 = 666.

It is a super-2 number, since 2×213223512132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213223512096 and 213223512105.

It is not an unprimeable number, because it can be changed into a prime (213223512133) 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, 552073 + ... + 855120.

It is an arithmetic number, because the mean of its divisors is an integer number (6107221960).

Almost surely, 2^213223512132 is an apocalyptic number.

It is an amenable number.

213223512132 is an abundant number, since it is smaller than the sum of its proper divisors (373069796028).

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

213223512132 is a wasteful number, since it uses less digits than its factorization.

213223512132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407290 (or 1407282 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 213223512132 its reverse (231215322312), we get a palindrome (444438834444).

The spelling of 213223512132 in words is "two hundred thirteen billion, two hundred twenty-three million, five hundred twelve thousand, one hundred thirty-two".