133030315521 has 16 divisors (see below), whose sum is σ = 202408489600. Its totient is φ = 86289933744.

The previous prime is 133030315417. The next prime is 133030315529. The reversal of 133030315521 is 125513030331.

133030315521 is a `hidden beast` number, since 1 + 330 + 303 + 1 + 5 + 5 + 21 = 666.

It is not a de Polignac number, because 133030315521 - 2⁹ = 133030315009 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133030315529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66580741 + ... + 66582738.

It is an arithmetic number, because the mean of its divisors is an integer number (12650530600).

Almost surely, 2^133030315521 is an apocalyptic number.

It is an amenable number.

133030315521 is a deficient number, since it is larger than the sum of its proper divisors (69378174079).

133030315521 is a wasteful number, since it uses less digits than its factorization.

133030315521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133163525 (or 133163519 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 133030315521 its reverse (125513030331), we get a palindrome (258543345852).

The spelling of 133030315521 in words is "one hundred thirty-three billion, thirty million, three hundred fifteen thousand, five hundred twenty-one".