121488012051841 has 2 divisors, whose sum is σ = 121488012051842. Its totient is φ = 121488012051840.

The previous prime is 121488012051823. The next prime is 121488012051871. The reversal of 121488012051841 is 148150210884121.

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., 93282353241841 + 28205658810000 = 9658279^2 + 5310900^2 .

It is an emirp because it is prime and its reverse (148150210884121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121488012051841 - 2¹¹ = 121488012049793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121488012051791 and 121488012051800.

It is not a weakly prime, because it can be changed into another prime (121488012051871) 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, 60744006025920 + 60744006025921.

It is an arithmetic number, because the mean of its divisors is an integer number (60744006025921).

Almost surely, 2^{121488012051841} is an apocalyptic number.

It is an amenable number.

121488012051841 is a deficient number, since it is larger than the sum of its proper divisors (1).

121488012051841 is an equidigital number, since it uses as much as digits as its factorization.

121488012051841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163840, while the sum is 46.

The spelling of 121488012051841 in words is "one hundred twenty-one trillion, four hundred eighty-eight billion, twelve million, fifty-one thousand, eight hundred forty-one".