133321100020 has 48 divisors (see below), whose sum is σ = 281035980288. Its totient is φ = 53126599680.

The previous prime is 133321099957. The next prime is 133321100039. The reversal of 133321100020 is 20001123331.

It is a junction number, because it is equal to n+sod(n) for n = 133321099967 and 133321100003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5831652 + ... + 5854468.

It is an arithmetic number, because the mean of its divisors is an integer number (5854916256).

Almost surely, 2^133321100020 is an apocalyptic number.

133321100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133321100020 is an abundant number, since it is smaller than the sum of its proper divisors (147714880268).

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

133321100020 is a wasteful number, since it uses less digits than its factorization.

133321100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23920 (or 23918 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 133321100020 its reverse (20001123331), we get a palindrome (153322223351).

The spelling of 133321100020 in words is "one hundred thirty-three billion, three hundred twenty-one million, one hundred thousand, twenty".