133020020 has 48 divisors (see below), whose sum is σ = 321729408. Its totient is φ = 45252480.

The previous prime is 133020001. The next prime is 133020037. The reversal of 133020020 is 20020331.

It is a junction number, because it is equal to n+sod(n) for n = 133019983 and 133020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14714 + ... + 21966.

It is an arithmetic number, because the mean of its divisors is an integer number (6702696).

Almost surely, 2^133020020 is an apocalyptic number.

133020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160864704).

133020020 is an abundant number, since it is smaller than the sum of its proper divisors (188709388).

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

133020020 is a wasteful number, since it uses less digits than its factorization.

133020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400 (or 7398 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 133020020 is about 11533.4305390894. The cubic root of 133020020 is about 510.4724828109.

Adding to 133020020 its reverse (20020331), we get a palindrome (153040351).

The spelling of 133020020 in words is "one hundred thirty-three million, twenty thousand, twenty".