133512312320 has 40 divisors (see below), whose sum is σ = 320116636224. Its totient is φ = 53404923904.

The previous prime is 133512312319. The next prime is 133512312337. The reversal of 133512312320 is 23213215331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 133512312320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26074064 + ... + 26079183.

Almost surely, 2^133512312320 is an apocalyptic number.

133512312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133512312320 is an abundant number, since it is smaller than the sum of its proper divisors (186604323904).

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

133512312320 is an frugal number, since it uses more digits than its factorization.

133512312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52153270 (or 52153254 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 133512312320 its reverse (23213215331), we get a palindrome (156725527651).

The spelling of 133512312320 in words is "one hundred thirty-three billion, five hundred twelve million, three hundred twelve thousand, three hundred twenty".