133231123133 has 8 divisors (see below), whose sum is σ = 133635714360. Its totient is φ = 132827143680.

The previous prime is 133231123099. The next prime is 133231123139. The reversal of 133231123133 is 331321132331.

It can be written as a sum of positive squares in 4 ways, for example, as 4531713124 + 128699410009 = 67318^2 + 358747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133231123133 - 2⁸ = 133231122877 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 (133231123139) 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, 285173 + ... + 589733.

It is an arithmetic number, because the mean of its divisors is an integer number (16704464295).

Almost surely, 2^133231123133 is an apocalyptic number.

It is an amenable number.

133231123133 is a deficient number, since it is larger than the sum of its proper divisors (404591227).

133231123133 is an equidigital number, since it uses as much as digits as its factorization.

133231123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305887.

The product of its digits is 2916, while the sum is 26.

Adding to 133231123133 its reverse (331321132331), we get a palindrome (464552255464).

The spelling of 133231123133 in words is "one hundred thirty-three billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-three".