21032303330 has 8 divisors (see below), whose sum is σ = 37858146012. Its totient is φ = 8412921328.

The previous prime is 21032303329. The next prime is 21032303353. The reversal of 21032303330 is 3330323012.

It can be written as a sum of positive squares in 2 ways, for example, as 20002727761 + 1029575569 = 141431^2 + 32087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051615157 + ... + 1051615176.

Almost surely, 2^21032303330 is an apocalyptic number.

21032303330 is a deficient number, since it is larger than the sum of its proper divisors (16825842682).

21032303330 is a wasteful number, since it uses less digits than its factorization.

21032303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103230340.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 21032303330 its reverse (3330323012), we get a palindrome (24362626342).

The spelling of 21032303330 in words is "twenty-one billion, thirty-two million, three hundred three thousand, three hundred thirty".