133164612053321 has 2 divisors, whose sum is σ = 133164612053322. Its totient is φ = 133164612053320.

The previous prime is 133164612053287. The next prime is 133164612053381. The reversal of 133164612053321 is 123350216461331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102742327443721 + 30422284609600 = 10136189^2 + 5515640^2 .

It is an emirp because it is prime and its reverse (123350216461331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133164612053321 is a prime.

It is a super-2 number, since 2×133164612053321² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133164612053381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66582306026660 + 66582306026661.

It is an arithmetic number, because the mean of its divisors is an integer number (66582306026661).

Almost surely, 2^{133164612053321} is an apocalyptic number.

It is an amenable number.

133164612053321 is a deficient number, since it is larger than the sum of its proper divisors (1).

133164612053321 is an equidigital number, since it uses as much as digits as its factorization.

133164612053321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 133164612053321 in words is "one hundred thirty-three trillion, one hundred sixty-four billion, six hundred twelve million, fifty-three thousand, three hundred twenty-one".