121344079361 has 2 divisors, whose sum is σ = 121344079362. Its totient is φ = 121344079360.

The previous prime is 121344079327. The next prime is 121344079387. The reversal of 121344079361 is 163970443121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62310144400 + 59033934961 = 249620^2 + 242969^2 .

It is an emirp because it is prime and its reverse (163970443121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121344079361 is a prime.

It is not a weakly prime, because it can be changed into another prime (121344079301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60672039680 + 60672039681.

It is an arithmetic number, because the mean of its divisors is an integer number (60672039681).

Almost surely, 2^121344079361 is an apocalyptic number.

It is an amenable number.

121344079361 is a deficient number, since it is larger than the sum of its proper divisors (1).

121344079361 is an equidigital number, since it uses as much as digits as its factorization.

121344079361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 121344079361 in words is "one hundred twenty-one billion, three hundred forty-four million, seventy-nine thousand, three hundred sixty-one".