21104214313232 has 20 divisors (see below), whose sum is σ = 40889764607436. Its totient is φ = 10552016995200.

The previous prime is 21104214313219. The next prime is 21104214313243. The reversal of 21104214313232 is 23231341240112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13088158475536 + 8016055837696 = 3617756^2 + 2831264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21104214313195 and 21104214313204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3683519 + ... + 7468382.

Almost surely, 2^{21104214313232} is an apocalyptic number.

It is an amenable number.

21104214313232 is a deficient number, since it is larger than the sum of its proper divisors (19785550294204).

21104214313232 is a wasteful number, since it uses less digits than its factorization.

21104214313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270186 (or 11270180 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 21104214313232 its reverse (23231341240112), we get a palindrome (44335555553344).

The spelling of 21104214313232 in words is "twenty-one trillion, one hundred four billion, two hundred fourteen million, three hundred thirteen thousand, two hundred thirty-two".