133323544342721 has 2 divisors, whose sum is σ = 133323544342722. Its totient is φ = 133323544342720.

The previous prime is 133323544342711. The next prime is 133323544342741. The reversal of 133323544342721 is 127243445323331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108277322998321 + 25046221344400 = 10405639^2 + 5004620^2 .

It is a cyclic number.

It is not a de Polignac number, because 133323544342721 - 2¹⁸ = 133323544080577 is a prime.

It is a super-2 number, since 2×133323544342721² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133323544342711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66661772171360 + 66661772171361.

It is an arithmetic number, because the mean of its divisors is an integer number (66661772171361).

Almost surely, 2^{133323544342721} is an apocalyptic number.

It is an amenable number.

133323544342721 is a deficient number, since it is larger than the sum of its proper divisors (1).

133323544342721 is an equidigital number, since it uses as much as digits as its factorization.

133323544342721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 47.

The spelling of 133323544342721 in words is "one hundred thirty-three trillion, three hundred twenty-three billion, five hundred forty-four million, three hundred forty-two thousand, seven hundred twenty-one".