21302001300 has 72 divisors (see below), whose sum is σ = 65259323136. Its totient is φ = 5346383360.

The previous prime is 21302001293. The next prime is 21302001311. The reversal of 21302001300 is 310020312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2083332 + ... + 2093531.

It is an arithmetic number, because the mean of its divisors is an integer number (906379488).

Almost surely, 2^21302001300 is an apocalyptic number.

21302001300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302001300 is an abundant number, since it is smaller than the sum of its proper divisors (43957321836).

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

21302001300 is a wasteful number, since it uses less digits than its factorization.

21302001300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176897 (or 4176890 counting only the distinct ones).

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

Adding to 21302001300 its reverse (310020312), we get a palindrome (21612021612).

The spelling of 21302001300 in words is "twenty-one billion, three hundred two million, one thousand, three hundred".