133000313321320 has 32 divisors (see below), whose sum is σ = 299277633958920. Its totient is φ = 53195337953280.

The previous prime is 133000313321279. The next prime is 133000313321321. The reversal of 133000313321320 is 23123313000331.

It can be written as a sum of positive squares in 4 ways, for example, as 91932697127716 + 41067616193604 = 9588154^2 + 6408402^2 .

It is not an unprimeable number, because it can be changed into a prime (133000313321321) 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, 149155401 + ... + 150044440.

Almost surely, 2^{133000313321320} is an apocalyptic number.

133000313321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133000313321320 is an abundant number, since it is smaller than the sum of its proper divisors (166277320637600).

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

133000313321320 is a wasteful number, since it uses less digits than its factorization.

133000313321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299210965 (or 299210961 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 133000313321320 its reverse (23123313000331), we get a palindrome (156123626321651).

The spelling of 133000313321320 in words is "one hundred thirty-three trillion, three hundred thirteen million, three hundred twenty-one thousand, three hundred twenty".