133313024420 has 24 divisors (see below), whose sum is σ = 281378462904. Its totient is φ = 53054521856.

The previous prime is 133313024417. The next prime is 133313024443. The reversal of 133313024420 is 24420313331.

It can be written as a sum of positive squares in 4 ways, for example, as 27927088996 + 105385935424 = 167114^2 + 324632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133313024420.

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, 16913957 + ... + 16921836.

It is an arithmetic number, because the mean of its divisors is an integer number (11724102621).

Almost surely, 2^133313024420 is an apocalyptic number.

133313024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133313024420 is an abundant number, since it is smaller than the sum of its proper divisors (148065438484).

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

133313024420 is a wasteful number, since it uses less digits than its factorization.

133313024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33835999 (or 33835997 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 133313024420 its reverse (24420313331), we get a palindrome (157733337751).

The spelling of 133313024420 in words is "one hundred thirty-three billion, three hundred thirteen million, twenty-four thousand, four hundred twenty".