21324230132 has 12 divisors (see below), whose sum is σ = 37403989056. Its totient is φ = 10637376120.

The previous prime is 21324230129. The next prime is 21324230141. The reversal of 21324230132 is 23103242312.

It is a junction number, because it is equal to n+sod(n) for n = 21324230098 and 21324230107.

It is a congruent number.

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, 6182798 + ... + 6186245.

It is an arithmetic number, because the mean of its divisors is an integer number (3116999088).

Almost surely, 2^21324230132 is an apocalyptic number.

It is an amenable number.

21324230132 is a deficient number, since it is larger than the sum of its proper divisors (16079758924).

21324230132 is a wasteful number, since it uses less digits than its factorization.

21324230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369478 (or 12369476 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21324230132 its reverse (23103242312), we get a palindrome (44427472444).

The spelling of 21324230132 in words is "twenty-one billion, three hundred twenty-four million, two hundred thirty thousand, one hundred thirty-two".