133333012320121 has 2 divisors, whose sum is σ = 133333012320122. Its totient is φ = 133333012320120.

The previous prime is 133333012320091. The next prime is 133333012320173. The reversal of 133333012320121 is 121023210333331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126970888914496 + 6362123405625 = 11268136^2 + 2522325^2 .

It is a cyclic number.

It is not a de Polignac number, because 133333012320121 - 2²¹ = 133333010222969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133333012320121.

It is not a weakly prime, because it can be changed into another prime (133333012320421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666506160060 + 66666506160061.

It is an arithmetic number, because the mean of its divisors is an integer number (66666506160061).

Almost surely, 2^{133333012320121} is an apocalyptic number.

It is an amenable number.

133333012320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333012320121 is an equidigital number, since it uses as much as digits as its factorization.

133333012320121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 133333012320121 its reverse (121023210333331), we get a palindrome (254356222653452).

The spelling of 133333012320121 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, twelve million, three hundred twenty thousand, one hundred twenty-one".