21301230323000 has 128 divisors (see below), whose sum is σ = 51069417235200. Its totient is φ = 8311241088000.

The previous prime is 21301230322969. The next prime is 21301230323011. The reversal of 21301230323000 is 32303210312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255347297 + ... + 255430703.

It is an arithmetic number, because the mean of its divisors is an integer number (398979822150).

Almost surely, 2^{21301230323000} is an apocalyptic number.

21301230323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21301230323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25534708617600).

21301230323000 is an abundant number, since it is smaller than the sum of its proper divisors (29768186912200).

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

21301230323000 is a wasteful number, since it uses less digits than its factorization.

21301230323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89698 (or 89684 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21301230323000 its reverse (32303210312), we get a palindrome (21333533533312).

The spelling of 21301230323000 in words is "twenty-one trillion, three hundred one billion, two hundred thirty million, three hundred twenty-three thousand".