133400001320 has 32 divisors (see below), whose sum is σ = 300818529000. Its totient is φ = 53241151488.

The previous prime is 133400001313. The next prime is 133400001331. The reversal of 133400001320 is 23100004331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129935737156 + 3464264164 = 360466^2 + 58858^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3695849 + ... + 3731768.

Almost surely, 2^133400001320 is an apocalyptic number.

133400001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133400001320 is an abundant number, since it is smaller than the sum of its proper divisors (167418527680).

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

133400001320 is a wasteful number, since it uses less digits than its factorization.

133400001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428077 (or 7428073 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 133400001320 its reverse (23100004331), we get a palindrome (156500005651).

The spelling of 133400001320 in words is "one hundred thirty-three billion, four hundred million, one thousand, three hundred twenty".