21003303110 has 8 divisors (see below), whose sum is σ = 37805945616. Its totient is φ = 8401321240.

The previous prime is 21003303091. The next prime is 21003303121. The reversal of 21003303110 is 1130330012.

21003303110 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×21003303110² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1050165146 + ... + 1050165165.

It is an arithmetic number, because the mean of its divisors is an integer number (4725743202).

Almost surely, 2^21003303110 is an apocalyptic number.

21003303110 is a deficient number, since it is larger than the sum of its proper divisors (16802642506).

21003303110 is a wasteful number, since it uses less digits than its factorization.

21003303110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100330318.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21003303110 its reverse (1130330012), we get a palindrome (22133633122).

The spelling of 21003303110 in words is "twenty-one billion, three million, three hundred three thousand, one hundred ten".