21032103330 has 256 divisors, whose sum is σ = 66657669120. Its totient is φ = 4618944000.

The previous prime is 21032103277. The next prime is 21032103353. The reversal of 21032103330 is 3330123012.

21032103330 is a `hidden beast` number, since 2 + 10 + 321 + 0 + 3 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5189805 + ... + 5193855.

It is an arithmetic number, because the mean of its divisors is an integer number (260381520).

Almost surely, 2^21032103330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21032103330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33328834560).

21032103330 is an abundant number, since it is smaller than the sum of its proper divisors (45625565790).

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

21032103330 is a wasteful number, since it uses less digits than its factorization.

21032103330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21032103330 its reverse (3330123012), we get a palindrome (24362226342).

The spelling of 21032103330 in words is "twenty-one billion, thirty-two million, one hundred three thousand, three hundred thirty".