133403312320 has 56 divisors (see below), whose sum is σ = 317716015824. Its totient is φ = 53353030656.

The previous prime is 133403312281. The next prime is 133403312323. The reversal of 133403312320 is 23213304331.

It is not an unprimeable number, because it can be changed into a prime (133403312323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2288982 + ... + 2346538.

Almost surely, 2^133403312320 is an apocalyptic number.

133403312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133403312320 is an abundant number, since it is smaller than the sum of its proper divisors (184312703504).

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

133403312320 is an equidigital number, since it uses as much as digits as its factorization.

133403312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64817 (or 64807 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 133403312320 its reverse (23213304331), we get a palindrome (156616616651).

The spelling of 133403312320 in words is "one hundred thirty-three billion, four hundred three million, three hundred twelve thousand, three hundred twenty".