21324241232 has 20 divisors (see below), whose sum is σ = 47217962976. Its totient is φ = 9138960480.

The previous prime is 21324241231. The next prime is 21324241243. The reversal of 21324241232 is 23214242312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21324241231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95197394 + ... + 95197617.

Almost surely, 2^21324241232 is an apocalyptic number.

It is an amenable number.

21324241232 is an abundant number, since it is smaller than the sum of its proper divisors (25893721744).

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

21324241232 is a wasteful number, since it uses less digits than its factorization.

21324241232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190395026 (or 190395020 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 21324241232 its reverse (23214242312), we get a palindrome (44538483544).

The spelling of 21324241232 in words is "twenty-one billion, three hundred twenty-four million, two hundred forty-one thousand, two hundred thirty-two".