133320320020 has 12 divisors (see below), whose sum is σ = 279972672084. Its totient is φ = 53328128000.

The previous prime is 133320320009. The next prime is 133320320051. The reversal of 133320320020 is 20023023331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55954010116 + 77366309904 = 236546^2 + 278148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133320320020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333007981 + ... + 3333008020.

It is an arithmetic number, because the mean of its divisors is an integer number (23331056007).

Almost surely, 2^133320320020 is an apocalyptic number.

133320320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133320320020 is an abundant number, since it is smaller than the sum of its proper divisors (146652352064).

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

133320320020 is a wasteful number, since it uses less digits than its factorization.

133320320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666016010 (or 6666016008 counting only the distinct ones).

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

Adding to 133320320020 its reverse (20023023331), we get a palindrome (153343343351).

The spelling of 133320320020 in words is "one hundred thirty-three billion, three hundred twenty million, three hundred twenty thousand, twenty".