21303033002 has 16 divisors (see below), whose sum is σ = 32158576320. Its totient is φ = 10583540352.

The previous prime is 21303032999. The next prime is 21303033023. The reversal of 21303033002 is 20033030312.

It is a super-2 number, since 2×21303033002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405699 + ... + 2414537.

It is an arithmetic number, because the mean of its divisors is an integer number (2009911020).

Almost surely, 2^21303033002 is an apocalyptic number.

21303033002 is a deficient number, since it is larger than the sum of its proper divisors (10855543318).

21303033002 is a wasteful number, since it uses less digits than its factorization.

21303033002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16397.

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

Adding to 21303033002 its reverse (20033030312), we get a palindrome (41336063314).

The spelling of 21303033002 in words is "twenty-one billion, three hundred three million, thirty-three thousand, two".