21324403132 has 24 divisors (see below), whose sum is σ = 38581555712. Its totient is φ = 10302174000.

The previous prime is 21324403123. The next prime is 21324403141. The reversal of 21324403132 is 23130442312.

It is an interprime number because it is at equal distance from previous prime (21324403123) and next prime (21324403141).

It is a junction number, because it is equal to n+sod(n) for n = 21324403097 and 21324403106.

It is a congruent number.

It is an unprimeable number.

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, 53994 + ... + 213457.

Almost surely, 2^21324403132 is an apocalyptic number.

It is an amenable number.

21324403132 is a deficient number, since it is larger than the sum of its proper divisors (17257152580).

21324403132 is a wasteful number, since it uses less digits than its factorization.

21324403132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268129 (or 268127 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21324403132 its reverse (23130442312), we get a palindrome (44454845444).

The spelling of 21324403132 in words is "twenty-one billion, three hundred twenty-four million, four hundred three thousand, one hundred thirty-two".