21033103332 has 24 divisors (see below), whose sum is σ = 49768471872. Its totient is φ = 6912287200.

The previous prime is 21033103331. The next prime is 21033103367. The reversal of 21033103332 is 23330133012.

It is a junction number, because it is equal to n+sod(n) for n = 21033103299 and 21033103308.

It is not an unprimeable number, because it can be changed into a prime (21033103331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12342519 + ... + 12344222.

It is an arithmetic number, because the mean of its divisors is an integer number (2073686328).

Almost surely, 2^21033103332 is an apocalyptic number.

It is an amenable number.

21033103332 is an abundant number, since it is smaller than the sum of its proper divisors (28735368540).

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

21033103332 is a wasteful number, since it uses less digits than its factorization.

21033103332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686819 (or 24686817 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21033103332 its reverse (23330133012), we get a palindrome (44363236344).

The spelling of 21033103332 in words is "twenty-one billion, thirty-three million, one hundred three thousand, three hundred thirty-two".