21033132032 has 112 divisors (see below), whose sum is σ = 46362055104. Its totient is φ = 9461760000.

The previous prime is 21033132019. The next prime is 21033132067. The reversal of 21033132032 is 23023133012.

It is a junction number, because it is equal to n+sod(n) for n = 21033131995 and 21033132013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9100157 + ... + 9102467.

Almost surely, 2^21033132032 is an apocalyptic number.

21033132032 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 21033132032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23181027552).

21033132032 is an abundant number, since it is smaller than the sum of its proper divisors (25328923072).

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

21033132032 is a wasteful number, since it uses less digits than its factorization.

21033132032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21033132032 its reverse (23023133012), we get a palindrome (44056265044).

The spelling of 21033132032 in words is "twenty-one billion, thirty-three million, one hundred thirty-two thousand, thirty-two".