21003302300 has 18 divisors (see below), whose sum is σ = 45577166208. Its totient is φ = 8401320880.

The previous prime is 21003302279. The next prime is 21003302321. The reversal of 21003302300 is 320330012.

It is an interprime number because it is at equal distance from previous prime (21003302279) and next prime (21003302321).

It is a super-2 number, since 2×21003302300² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105016412 + ... + 105016611.

Almost surely, 2^21003302300 is an apocalyptic number.

21003302300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21003302300 is an abundant number, since it is smaller than the sum of its proper divisors (24573863908).

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

21003302300 is a wasteful number, since it uses less digits than its factorization.

21003302300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210033037 (or 210033030 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 21003302300 its reverse (320330012), we get a palindrome (21323632312).

The spelling of 21003302300 in words is "twenty-one billion, three million, three hundred two thousand, three hundred".