20320011330 has 16 divisors (see below), whose sum is σ = 48768027264. Its totient is φ = 5418669680.

The previous prime is 20320011269. The next prime is 20320011359. The reversal of 20320011330 is 3311002302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338666826 + ... + 338666885.

It is an arithmetic number, because the mean of its divisors is an integer number (3048001704).

Almost surely, 2^20320011330 is an apocalyptic number.

20320011330 is an abundant number, since it is smaller than the sum of its proper divisors (28448015934).

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

20320011330 is a wasteful number, since it uses less digits than its factorization.

20320011330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677333721.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20320011330 its reverse (3311002302), we get a palindrome (23631013632).

The spelling of 20320011330 in words is "twenty billion, three hundred twenty million, eleven thousand, three hundred thirty".