133403223240 has 512 divisors, whose sum is σ = 532644480000. Its totient is φ = 29665004544.

The previous prime is 133403223223. The next prime is 133403223313. The reversal of 133403223240 is 42322304331.

133403223240 is a `hidden beast` number, since 1 + 33 + 403 + 223 + 2 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13701414 + ... + 13711146.

It is an arithmetic number, because the mean of its divisors is an integer number (1040321250).

Almost surely, 2^133403223240 is an apocalyptic number.

133403223240 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 133403223240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266322240000).

133403223240 is an abundant number, since it is smaller than the sum of its proper divisors (399241256760).

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

133403223240 is a wasteful number, since it uses less digits than its factorization.

133403223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811 (or 9787 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 133403223240 its reverse (42322304331), we get a palindrome (175725527571).

The spelling of 133403223240 in words is "one hundred thirty-three billion, four hundred three million, two hundred twenty-three thousand, two hundred forty".