21303130033 has 8 divisors (see below), whose sum is σ = 21994813440. Its totient is φ = 20611727040.

The previous prime is 21303130007. The next prime is 21303130061. The reversal of 21303130033 is 33003130312.

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

It is a cyclic number.

It is not a de Polignac number, because 21303130033 - 2²⁹ = 20766259121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303130063) 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, 90153 + ... + 225241.

It is an arithmetic number, because the mean of its divisors is an integer number (2749351680).

Almost surely, 2^21303130033 is an apocalyptic number.

It is an amenable number.

21303130033 is a deficient number, since it is larger than the sum of its proper divisors (691683407).

21303130033 is a wasteful number, since it uses less digits than its factorization.

21303130033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140207.

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

Adding to 21303130033 its reverse (33003130312), we get a palindrome (54306260345).

The spelling of 21303130033 in words is "twenty-one billion, three hundred three million, one hundred thirty thousand, thirty-three".