21230332013330 has 64 divisors (see below), whose sum is σ = 41781341306880. Its totient is φ = 7702960440000.

The previous prime is 21230332013323. The next prime is 21230332013393. The reversal of 21230332013330 is 3331023303212.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21230332013330.

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, 464017955 + ... + 464063705.

It is an arithmetic number, because the mean of its divisors is an integer number (652833457920).

Almost surely, 2^{21230332013330} is an apocalyptic number.

21230332013330 is a deficient number, since it is larger than the sum of its proper divisors (20551009293550).

21230332013330 is a wasteful number, since it uses less digits than its factorization.

21230332013330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55055.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21230332013330 its reverse (3331023303212), we get a palindrome (24561355316542).

The spelling of 21230332013330 in words is "twenty-one trillion, two hundred thirty billion, three hundred thirty-two million, thirteen thousand, three hundred thirty".