21004102300 has 18 divisors (see below), whose sum is σ = 45578902208. Its totient is φ = 8401640880.

The previous prime is 21004102219. The next prime is 21004102313. The reversal of 21004102300 is 320140012.

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, 105020412 + ... + 105020611.

Almost surely, 2^21004102300 is an apocalyptic number.

21004102300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21004102300 is an abundant number, since it is smaller than the sum of its proper divisors (24574799908).

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

21004102300 is a wasteful number, since it uses less digits than its factorization.

21004102300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210041037 (or 210041030 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21004102300 its reverse (320140012), we get a palindrome (21324242312).

The spelling of 21004102300 in words is "twenty-one billion, four million, one hundred two thousand, three hundred".