21030110304 has 96 divisors (see below), whose sum is σ = 66801563136. Its totient is φ = 5655152640.

The previous prime is 21030110303. The next prime is 21030110333. The reversal of 21030110304 is 40301103012.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030110303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909012 + ... + 931859.

It is an arithmetic number, because the mean of its divisors is an integer number (695849616).

Almost surely, 2^21030110304 is an apocalyptic number.

21030110304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21030110304 is an abundant number, since it is smaller than the sum of its proper divisors (45771452832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21030110304 is a wasteful number, since it uses less digits than its factorization.

21030110304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840908 (or 1840900 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21030110304 its reverse (40301103012), we get a palindrome (61331213316).

The spelling of 21030110304 in words is "twenty-one billion, thirty million, one hundred ten thousand, three hundred four".