21032003332 has 12 divisors (see below), whose sum is σ = 36807924636. Its totient is φ = 10515453440.

The previous prime is 21032003309. The next prime is 21032003359. The reversal of 21032003332 is 23330023012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5492884996 + 15539118336 = 74114^2 + 124656^2 .

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 3 ways as a sum of consecutive naturals, for example, 43669 + ... + 209692.

It is an arithmetic number, because the mean of its divisors is an integer number (3067327053).

Almost surely, 2^21032003332 is an apocalyptic number.

It is an amenable number.

21032003332 is a deficient number, since it is larger than the sum of its proper divisors (15775921304).

21032003332 is a wasteful number, since it uses less digits than its factorization.

21032003332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274118 (or 274116 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21032003332 its reverse (23330023012), we get a palindrome (44362026344).

The spelling of 21032003332 in words is "twenty-one billion, thirty-two million, three thousand, three hundred thirty-two".