133131230999 has 16 divisors (see below), whose sum is σ = 143654632800. Its totient is φ = 122648394240.

The previous prime is 133131230983. The next prime is 133131231019. The reversal of 133131230999 is 999032131331.

It is a cyclic number.

It is not a de Polignac number, because 133131230999 - 2⁴ = 133131230983 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 (133131235999) 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, 30980219 + ... + 30984515.

It is an arithmetic number, because the mean of its divisors is an integer number (8978414550).

Almost surely, 2^133131230999 is an apocalyptic number.

133131230999 is a deficient number, since it is larger than the sum of its proper divisors (10523401801).

133131230999 is a wasteful number, since it uses less digits than its factorization.

133131230999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8450.

The product of its (nonzero) digits is 118098, while the sum is 44.

The spelling of 133131230999 in words is "one hundred thirty-three billion, one hundred thirty-one million, two hundred thirty thousand, nine hundred ninety-nine".