133121236101643 has 2 divisors, whose sum is σ = 133121236101644. Its totient is φ = 133121236101642.

The previous prime is 133121236101617. The next prime is 133121236101647. The reversal of 133121236101643 is 346101632121331.

It is a strong prime.

It is an emirp because it is prime and its reverse (346101632121331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133121236101643 - 2⁵ = 133121236101611 is a prime.

It is not a weakly prime, because it can be changed into another prime (133121236101647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560618050821 + 66560618050822.

It is an arithmetic number, because the mean of its divisors is an integer number (66560618050822).

Almost surely, 2^{133121236101643} is an apocalyptic number.

133121236101643 is a deficient number, since it is larger than the sum of its proper divisors (1).

133121236101643 is an equidigital number, since it uses as much as digits as its factorization.

133121236101643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 133121236101643 its reverse (346101632121331), we get a palindrome (479222868222974).

The spelling of 133121236101643 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred thirty-six million, one hundred one thousand, six hundred forty-three".