133040124431 has 4 divisors (see below), whose sum is σ = 135550315512. Its totient is φ = 130529933352.

The previous prime is 133040124421. The next prime is 133040124449. The reversal of 133040124431 is 134421040331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133040124431 - 2¹⁸ = 133039862287 is a prime.

It is a super-2 number, since 2×133040124431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133040124431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133040124421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255095461 + ... + 1255095566.

It is an arithmetic number, because the mean of its divisors is an integer number (33887578878).

Almost surely, 2^133040124431 is an apocalyptic number.

133040124431 is a deficient number, since it is larger than the sum of its proper divisors (2510191081).

133040124431 is an equidigital number, since it uses as much as digits as its factorization.

133040124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510191080.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 133040124431 its reverse (134421040331), we get a palindrome (267461164762).

The spelling of 133040124431 in words is "one hundred thirty-three billion, forty million, one hundred twenty-four thousand, four hundred thirty-one".