121044242369 has 2 divisors, whose sum is σ = 121044242370. Its totient is φ = 121044242368.

The previous prime is 121044242329. The next prime is 121044242497. The reversal of 121044242369 is 963242440121.

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., 121006579600 + 37662769 = 347860^2 + 6137^2 .

It is a cyclic number.

It is not a de Polignac number, because 121044242369 - 2⁸ = 121044242113 is a prime.

It is a super-2 number, since 2×121044242369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121044242329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60522121184 + 60522121185.

It is an arithmetic number, because the mean of its divisors is an integer number (60522121185).

Almost surely, 2^121044242369 is an apocalyptic number.

It is an amenable number.

121044242369 is a deficient number, since it is larger than the sum of its proper divisors (1).

121044242369 is an equidigital number, since it uses as much as digits as its factorization.

121044242369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 121044242369 in words is "one hundred twenty-one billion, forty-four million, two hundred forty-two thousand, three hundred sixty-nine".