133032312320 has 80 divisors (see below), whose sum is σ = 319695029280. Its totient is φ = 53091262464.

The previous prime is 133032312313. The next prime is 133032312353. The reversal of 133032312320 is 23213230331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×133032312320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1064654 + ... + 1183026.

It is an arithmetic number, because the mean of its divisors is an integer number (3996187866).

Almost surely, 2^133032312320 is an apocalyptic number.

133032312320 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 133032312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159847514640).

133032312320 is an abundant number, since it is smaller than the sum of its proper divisors (186662716960).

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

133032312320 is an equidigital number, since it uses as much as digits as its factorization.

133032312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118835 (or 118819 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 133032312320 its reverse (23213230331), we get a palindrome (156245542651).

The spelling of 133032312320 in words is "one hundred thirty-three billion, thirty-two million, three hundred twelve thousand, three hundred twenty".