213232440002 has 16 divisors (see below), whose sum is σ = 338982536952. Its totient is φ = 100250085120.

The previous prime is 213232439947. The next prime is 213232440007. The reversal of 213232440002 is 200044232312.

It can be written as a sum of positive squares in 4 ways, for example, as 188902367641 + 24330072361 = 434629^2 + 155981^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213232440002.

It is not an unprimeable number, because it can be changed into a prime (213232440007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2919413 + ... + 2991560.

Almost surely, 2^213232440002 is an apocalyptic number.

213232440002 is a deficient number, since it is larger than the sum of its proper divisors (125750096950).

213232440002 is a wasteful number, since it uses less digits than its factorization.

213232440002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912053.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 213232440002 its reverse (200044232312), we get a palindrome (413276672314).

The spelling of 213232440002 in words is "two hundred thirteen billion, two hundred thirty-two million, four hundred forty thousand, two".