133011020 has 24 divisors (see below), whose sum is σ = 294025200. Its totient is φ = 50404032.

The previous prime is 133011019. The next prime is 133011059. The reversal of 133011020 is 20110331.

133011020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 133010992 and 133011010.

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, 174635 + ... + 175394.

It is an arithmetic number, because the mean of its divisors is an integer number (12251050).

Almost surely, 2^133011020 is an apocalyptic number.

133011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133011020 is an abundant number, since it is smaller than the sum of its proper divisors (161014180).

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

133011020 is a wasteful number, since it uses less digits than its factorization.

133011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350057 (or 350055 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 133011020 is about 11533.0403623676. The cubic root of 133011020 is about 510.4609698673.

Adding to 133011020 its reverse (20110331), we get a palindrome (153121351).

The spelling of 133011020 in words is "one hundred thirty-three million, eleven thousand, twenty".