133231321312320 has 224 divisors, whose sum is σ = 527388399461376. Its totient is φ = 27684430387200.

The previous prime is 133231321312273. The next prime is 133231321312321. The reversal of 133231321312320 is 23213123132331.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (133231321312321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 901111966 + ... + 901259805.

Almost surely, 2^{133231321312320} is an apocalyptic number.

133231321312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133231321312320 is an abundant number, since it is smaller than the sum of its proper divisors (394157078149056).

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

133231321312320 is a wasteful number, since it uses less digits than its factorization.

133231321312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802371809 (or 1802371799 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 133231321312320 its reverse (23213123132331), we get a palindrome (156444444444651).

The spelling of 133231321312320 in words is "one hundred thirty-three trillion, two hundred thirty-one billion, three hundred twenty-one million, three hundred twelve thousand, three hundred twenty".