133041144235431 has 4 divisors (see below), whose sum is σ = 177388192313912. Its totient is φ = 88694096156952.

The previous prime is 133041144235397. The next prime is 133041144235469. The reversal of 133041144235431 is 134532441140331.

It is a happy number.

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

It is not a de Polignac number, because 133041144235431 - 2⁶ = 133041144235367 is a prime.

It is a super-2 number, since 2×133041144235431² (a number of 29 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 133041144235431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133041144235031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22173524039236 + ... + 22173524039241.

It is an arithmetic number, because the mean of its divisors is an integer number (44347048078478).

Almost surely, 2^{133041144235431} is an apocalyptic number.

133041144235431 is a deficient number, since it is larger than the sum of its proper divisors (44347048078481).

133041144235431 is an equidigital number, since it uses as much as digits as its factorization.

133041144235431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44347048078480.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 133041144235431 its reverse (134532441140331), we get a palindrome (267573585375762).

The spelling of 133041144235431 in words is "one hundred thirty-three trillion, forty-one billion, one hundred forty-four million, two hundred thirty-five thousand, four hundred thirty-one".