20032321330 has 128 divisors (see below), whose sum is σ = 43279142400. Its totient is φ = 6533001216.

The previous prime is 20032321289. The next prime is 20032321363. The reversal of 20032321330 is 3312323002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20032321298 and 20032321307.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51496776 + ... + 51497164.

It is an arithmetic number, because the mean of its divisors is an integer number (338118300).

Almost surely, 2^20032321330 is an apocalyptic number.

20032321330 is an abundant number, since it is smaller than the sum of its proper divisors (23246821070).

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

20032321330 is a wasteful number, since it uses less digits than its factorization.

20032321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20032321330 its reverse (3312323002), we get a palindrome (23344644332).

The spelling of 20032321330 in words is "twenty billion, thirty-two million, three hundred twenty-one thousand, three hundred thirty".