133445121330431 has 8 divisors (see below), whose sum is σ = 133628569754784. Its totient is φ = 133261777589760.

The previous prime is 133445121330419. The next prime is 133445121330467. The reversal of 133445121330431 is 134033121544331.

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 133445121330431 - 2¹⁰ = 133445121329407 is a prime.

It is a super-2 number, since 2×133445121330431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133445121390431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23619506 + ... + 28718831.

It is an arithmetic number, because the mean of its divisors is an integer number (16703571219348).

Almost surely, 2^{133445121330431} is an apocalyptic number.

133445121330431 is a deficient number, since it is larger than the sum of its proper divisors (183448424353).

133445121330431 is a wasteful number, since it uses less digits than its factorization.

133445121330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52341841.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 133445121330431 its reverse (134033121544331), we get a palindrome (267478242874762).

The spelling of 133445121330431 in words is "one hundred thirty-three trillion, four hundred forty-five billion, one hundred twenty-one million, three hundred thirty thousand, four hundred thirty-one".