133111233020 has 48 divisors (see below), whose sum is σ = 281505823200. Its totient is φ = 52869076224.

The previous prime is 133111232879. The next prime is 133111233071. The reversal of 133111233020 is 20332111331.

It is a super-2 number, since 2×133111233020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 133111232983 and 133111233001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11756402 + ... + 11767718.

It is an arithmetic number, because the mean of its divisors is an integer number (5864704650).

Almost surely, 2^133111233020 is an apocalyptic number.

133111233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133111233020 is an abundant number, since it is smaller than the sum of its proper divisors (148394590180).

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

133111233020 is a wasteful number, since it uses less digits than its factorization.

133111233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15422 (or 15420 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133111233020 its reverse (20332111331), we get a palindrome (153443344351).

The spelling of 133111233020 in words is "one hundred thirty-three billion, one hundred eleven million, two hundred thirty-three thousand, twenty".