133701321601 has 2 divisors, whose sum is σ = 133701321602. Its totient is φ = 133701321600.

The previous prime is 133701321599. The next prime is 133701321617. The reversal of 133701321601 is 106123107331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98160023025 + 35541298576 = 313305^2 + 188524^2 .

It is a cyclic number.

It is not a de Polignac number, because 133701321601 - 2¹ = 133701321599 is a prime.

Together with 133701321599, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133701321601.

It is not a weakly prime, because it can be changed into another prime (133701321671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66850660800 + 66850660801.

It is an arithmetic number, because the mean of its divisors is an integer number (66850660801).

Almost surely, 2^133701321601 is an apocalyptic number.

It is an amenable number.

133701321601 is a deficient number, since it is larger than the sum of its proper divisors (1).

133701321601 is an equidigital number, since it uses as much as digits as its factorization.

133701321601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 133701321601 its reverse (106123107331), we get a palindrome (239824428932).

The spelling of 133701321601 in words is "one hundred thirty-three billion, seven hundred one million, three hundred twenty-one thousand, six hundred one".