21033103003232 has 96 divisors (see below), whose sum is σ = 42930602007552. Its totient is φ = 10136939940864.

The previous prime is 21033103003229. The next prime is 21033103003277. The reversal of 21033103003232 is 23230030133012.

It is a junction number, because it is equal to n+sod(n) for n = 21033103003198 and 21033103003207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515206373 + ... + 515247195.

It is an arithmetic number, because the mean of its divisors is an integer number (447193770912).

Almost surely, 2^{21033103003232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21033103003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21465301003776).

21033103003232 is an abundant number, since it is smaller than the sum of its proper divisors (21897499004320).

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

21033103003232 is a wasteful number, since it uses less digits than its factorization.

21033103003232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46060 (or 46052 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21033103003232 its reverse (23230030133012), we get a palindrome (44263133136244).

The spelling of 21033103003232 in words is "twenty-one trillion, thirty-three billion, one hundred three million, three thousand, two hundred thirty-two".