133308817903 has 16 divisors (see below), whose sum is σ = 142531200000. Its totient is φ = 124373430720.

The previous prime is 133308817871. The next prime is 133308817909. The reversal of 133308817903 is 309718803331.

It is a cyclic number.

It is not a de Polignac number, because 133308817903 - 2⁵ = 133308817871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133308817909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4699918 + ... + 4728196.

It is an arithmetic number, because the mean of its divisors is an integer number (8908200000).

Almost surely, 2^133308817903 is an apocalyptic number.

133308817903 is a deficient number, since it is larger than the sum of its proper divisors (9222382097).

133308817903 is a wasteful number, since it uses less digits than its factorization.

133308817903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33342.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 133308817903 in words is "one hundred thirty-three billion, three hundred eight million, eight hundred seventeen thousand, nine hundred three".