21000032303030 has 32 divisors (see below), whose sum is σ = 42242193590688. Its totient is φ = 7450122323200.

The previous prime is 21000032303027. The next prime is 21000032303099. The reversal of 21000032303030 is 3030323000012.

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, 2328158717 + ... + 2328167736.

It is an arithmetic number, because the mean of its divisors is an integer number (1320068549709).

Almost surely, 2^{21000032303030} is an apocalyptic number.

21000032303030 is an abundant number, since it is smaller than the sum of its proper divisors (21242161287658).

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

21000032303030 is a wasteful number, since it uses less digits than its factorization.

21000032303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656326512.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 21000032303030 its reverse (3030323000012), we get a palindrome (24030355303042).

The spelling of 21000032303030 in words is "twenty-one trillion, thirty-two million, three hundred three thousand, thirty".