21133303030 has 16 divisors (see below), whose sum is σ = 43474223520. Its totient is φ = 7245703872.

The previous prime is 21133303001. The next prime is 21133303031. The reversal of 21133303030 is 3030333112.

It is a junction number, because it is equal to n+sod(n) for n = 21133302989 and 21133303007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133303031) 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, 150952095 + ... + 150952234.

It is an arithmetic number, because the mean of its divisors is an integer number (2717138970).

Almost surely, 2^21133303030 is an apocalyptic number.

21133303030 is an abundant number, since it is smaller than the sum of its proper divisors (22340920490).

21133303030 is a wasteful number, since it uses less digits than its factorization.

21133303030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301904343.

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

Adding to 21133303030 its reverse (3030333112), we get a palindrome (24163636142).

The spelling of 21133303030 in words is "twenty-one billion, one hundred thirty-three million, three hundred three thousand, thirty".