133443442531361 has 16 divisors (see below), whose sum is σ = 141558602723328. Its totient is φ = 125586566726400.

The previous prime is 133443442531327. The next prime is 133443442531369. The reversal of 133443442531361 is 163135244344331.

It is a cyclic number.

It is not a de Polignac number, because 133443442531361 - 2⁶ = 133443442531297 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133443442531369) 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, 167319281 + ... + 168114926.

It is an arithmetic number, because the mean of its divisors is an integer number (8847412670208).

Almost surely, 2^{133443442531361} is an apocalyptic number.

It is an amenable number.

133443442531361 is a deficient number, since it is larger than the sum of its proper divisors (8115160191967).

133443442531361 is a wasteful number, since it uses less digits than its factorization.

133443442531361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335434592.

The product of its digits is 3732480, while the sum is 47.

Adding to 133443442531361 its reverse (163135244344331), we get a palindrome (296578686875692).

The spelling of 133443442531361 in words is "one hundred thirty-three trillion, four hundred forty-three billion, four hundred forty-two million, five hundred thirty-one thousand, three hundred sixty-one".