21033303002 has 8 divisors (see below), whose sum is σ = 31586944116. Its totient is φ = 10504321632.

The previous prime is 21033303001. The next prime is 21033303043. The reversal of 21033303002 is 20030333012.

It can be written as a sum of positive squares in 2 ways, for example, as 17707358761 + 3325944241 = 133069^2 + 57671^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21033303001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6162803 + ... + 6166214.

Almost surely, 2^21033303002 is an apocalyptic number.

21033303002 is a deficient number, since it is larger than the sum of its proper divisors (10553641114).

21033303002 is a wasteful number, since it uses less digits than its factorization.

21033303002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12329872.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 21033303002 its reverse (20030333012), we get a palindrome (41063636014).

The spelling of 21033303002 in words is "twenty-one billion, thirty-three million, three hundred three thousand, two".