133423200240 has 80 divisors (see below), whose sum is σ = 451213013376. Its totient is φ = 32345017600.

The previous prime is 133423200221. The next prime is 133423200241. The reversal of 133423200240 is 42002324331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 133423200240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133423200241) by changing a digit.

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, 25266906 + ... + 25272185.

Almost surely, 2^133423200240 is an apocalyptic number.

133423200240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133423200240 is an abundant number, since it is smaller than the sum of its proper divisors (317789813136).

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

133423200240 is a wasteful number, since it uses less digits than its factorization.

133423200240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50539118 (or 50539112 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 133423200240 its reverse (42002324331), we get a palindrome (175425524571).

The spelling of 133423200240 in words is "one hundred thirty-three billion, four hundred twenty-three million, two hundred thousand, two hundred forty".