21230324210000 has 100 divisors (see below), whose sum is σ = 52596105008832. Its totient is φ = 8294638128000.

The previous prime is 21230324209967. The next prime is 21230324210009. The reversal of 21230324210000 is 1242303212.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230324210009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24256424 + ... + 25116423.

Almost surely, 2^{21230324210000} is an apocalyptic number.

21230324210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230324210000 is an abundant number, since it is smaller than the sum of its proper divisors (31365780798832).

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

21230324210000 is an equidigital number, since it uses as much as digits as its factorization.

21230324210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49372918 (or 49372897 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21230324210000 its reverse (1242303212), we get a palindrome (21231566513212).

The spelling of 21230324210000 in words is "twenty-one trillion, two hundred thirty billion, three hundred twenty-four million, two hundred ten thousand".