21230132330000 has 200 divisors, whose sum is σ = 56628233614656. Its totient is φ = 7643608000000.

The previous prime is 21230132329999. The next prime is 21230132330023. The reversal of 21230132330000 is 3323103212.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×21230132330000² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10154549 + ... + 12065451.

Almost surely, 2^{21230132330000} is an apocalyptic number.

21230132330000 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 21230132330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28314116807328).

21230132330000 is an abundant number, since it is smaller than the sum of its proper divisors (35398101284656).

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

21230132330000 is a wasteful number, since it uses less digits than its factorization.

21230132330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911043 (or 1911022 counting only the distinct ones).

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

Adding to 21230132330000 its reverse (3323103212), we get a palindrome (21233455433212).

The spelling of 21230132330000 in words is "twenty-one trillion, two hundred thirty billion, one hundred thirty-two million, three hundred thirty thousand".