133320520524 has 12 divisors (see below), whose sum is σ = 311081214584. Its totient is φ = 44440173504.

The previous prime is 133320520517. The next prime is 133320520559. The reversal of 133320520524 is 425025023331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×133320520524² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133320520491 and 133320520500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555021677 + ... + 5555021700.

Almost surely, 2^133320520524 is an apocalyptic number.

It is an amenable number.

133320520524 is an abundant number, since it is smaller than the sum of its proper divisors (177760694060).

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

133320520524 is a wasteful number, since it uses less digits than its factorization.

133320520524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110043384 (or 11110043382 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 133320520524 its reverse (425025023331), we get a palindrome (558345543855).

The spelling of 133320520524 in words is "one hundred thirty-three billion, three hundred twenty million, five hundred twenty thousand, five hundred twenty-four".