21321030404300 has 72 divisors (see below), whose sum is σ = 50754664618560. Its totient is φ = 7709788475200.

The previous prime is 21321030404291. The next prime is 21321030404369. The reversal of 21321030404300 is 340403012312.

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, 53944874 + ... + 54338673.

It is an arithmetic number, because the mean of its divisors is an integer number (704925897480).

Almost surely, 2^{21321030404300} is an apocalyptic number.

21321030404300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21321030404300 is an abundant number, since it is smaller than the sum of its proper divisors (29433634214260).

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

21321030404300 is a wasteful number, since it uses less digits than its factorization.

21321030404300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108283751 (or 108283744 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21321030404300 its reverse (340403012312), we get a palindrome (21661433416612).

The spelling of 21321030404300 in words is "twenty-one trillion, three hundred twenty-one billion, thirty million, four hundred four thousand, three hundred".