21130333003 has 8 divisors (see below), whose sum is σ = 22807584800. Its totient is φ = 19460487168.

The previous prime is 21130332989. The next prime is 21130333009. The reversal of 21130333003 is 30033303112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21130333003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21130333009) 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, 1845558 + ... + 1856971.

It is an arithmetic number, because the mean of its divisors is an integer number (2850948100).

Almost surely, 2^21130333003 is an apocalyptic number.

21130333003 is a deficient number, since it is larger than the sum of its proper divisors (1677251797).

21130333003 is a wasteful number, since it uses less digits than its factorization.

21130333003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702981.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 21130333003 its reverse (30033303112), we get a palindrome (51163636115).

The spelling of 21130333003 in words is "twenty-one billion, one hundred thirty million, three hundred thirty-three thousand, three".