133220430240 has 192 divisors, whose sum is σ = 425411481600. Its totient is φ = 35038209024.

The previous prime is 133220430197. The next prime is 133220430257. The reversal of 133220430240 is 42034022331.

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 133220430240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65335141 + ... + 65337179.

It is an arithmetic number, because the mean of its divisors is an integer number (2215684800).

Almost surely, 2^133220430240 is an apocalyptic number.

133220430240 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 133220430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212705740800).

133220430240 is an abundant number, since it is smaller than the sum of its proper divisors (292191051360).

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

133220430240 is a wasteful number, since it uses less digits than its factorization.

133220430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859 (or 3851 counting only the distinct ones).

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

Adding to 133220430240 its reverse (42034022331), we get a palindrome (175254452571).

The spelling of 133220430240 in words is "one hundred thirty-three billion, two hundred twenty million, four hundred thirty thousand, two hundred forty".