133465041154321 has 2 divisors, whose sum is σ = 133465041154322. Its totient is φ = 133465041154320.

The previous prime is 133465041154307. The next prime is 133465041154337. The reversal of 133465041154321 is 123451140564331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105607377137025 + 27857664017296 = 10276545^2 + 5278036^2 .

It is an emirp because it is prime and its reverse (123451140564331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133465041154321 - 2¹⁵ = 133465041121553 is a prime.

It is not a weakly prime, because it can be changed into another prime (133465041154301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66732520577160 + 66732520577161.

It is an arithmetic number, because the mean of its divisors is an integer number (66732520577161).

Almost surely, 2^{133465041154321} is an apocalyptic number.

It is an amenable number.

133465041154321 is a deficient number, since it is larger than the sum of its proper divisors (1).

133465041154321 is an equidigital number, since it uses as much as digits as its factorization.

133465041154321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 133465041154321 in words is "one hundred thirty-three trillion, four hundred sixty-five billion, forty-one million, one hundred fifty-four thousand, three hundred twenty-one".