21103133030 has 32 divisors (see below), whose sum is σ = 43440019200. Its totient is φ = 7230716640.

The previous prime is 21103133027. The next prime is 21103133063. The reversal of 21103133030 is 3033130112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14021 + ... + 205919.

It is an arithmetic number, because the mean of its divisors is an integer number (1357500600).

Almost surely, 2^21103133030 is an apocalyptic number.

21103133030 is an abundant number, since it is smaller than the sum of its proper divisors (22336886170).

21103133030 is a wasteful number, since it uses less digits than its factorization.

21103133030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193484.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21103133030 its reverse (3033130112), we get a palindrome (24136263142).

The spelling of 21103133030 in words is "twenty-one billion, one hundred three million, one hundred thirty-three thousand, thirty".