121501044350137 has 2 divisors, whose sum is σ = 121501044350138. Its totient is φ = 121501044350136.

The previous prime is 121501044350087. The next prime is 121501044350149. The reversal of 121501044350137 is 731053440105121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116770262748841 + 4730781601296 = 10806029^2 + 2175036^2 .

It is a cyclic number.

It is not a de Polignac number, because 121501044350137 - 2³¹ = 121498896866489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121501044350096 and 121501044350105.

It is not a weakly prime, because it can be changed into another prime (121501044350197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60750522175068 + 60750522175069.

It is an arithmetic number, because the mean of its divisors is an integer number (60750522175069).

Almost surely, 2^{121501044350137} is an apocalyptic number.

It is an amenable number.

121501044350137 is a deficient number, since it is larger than the sum of its proper divisors (1).

121501044350137 is an equidigital number, since it uses as much as digits as its factorization.

121501044350137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 121501044350137 its reverse (731053440105121), we get a palindrome (852554484455258).

The spelling of 121501044350137 in words is "one hundred twenty-one trillion, five hundred one billion, forty-four million, three hundred fifty thousand, one hundred thirty-seven".