21103000302 has 8 divisors (see below), whose sum is σ = 42206000616. Its totient is φ = 7034333432.

The previous prime is 21103000253. The next prime is 21103000309. The reversal of 21103000302 is 20300030112.

It is a happy number.

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

21103000302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103000309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758583353 + ... + 1758583364.

It is an arithmetic number, because the mean of its divisors is an integer number (5275750077).

Almost surely, 2^21103000302 is an apocalyptic number.

21103000302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21103000302 is a wasteful number, since it uses less digits than its factorization.

21103000302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517166722.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21103000302 its reverse (20300030112), we get a palindrome (41403030414).

The spelling of 21103000302 in words is "twenty-one billion, one hundred three million, three hundred two", and thus it is an aban number.