21324500032 has 56 divisors (see below), whose sum is σ = 46333452672. Its totient is φ = 9657100800.

The previous prime is 21324500011. The next prime is 21324500059. The reversal of 21324500032 is 23000542312.

It is a super-2 number, since 2×21324500032² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21324499976 and 21324500012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134898 + ... + 246670.

Almost surely, 2^21324500032 is an apocalyptic number.

21324500032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21324500032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23166726336).

21324500032 is an abundant number, since it is smaller than the sum of its proper divisors (25008952640).

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

21324500032 is a wasteful number, since it uses less digits than its factorization.

21324500032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112067 (or 112057 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 21324500032 in words is "twenty-one billion, three hundred twenty-four million, five hundred thousand, thirty-two".