1197261120049 has 2 divisors, whose sum is σ = 1197261120050. Its totient is φ = 1197261120048.

The previous prime is 1197261119959. The next prime is 1197261120163. The reversal of 1197261120049 is 9400211627911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952052935824 + 245208184225 = 975732^2 + 495185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197261120049 - 2²⁹ = 1196724249137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197261119987 and 1197261120014.

It is not a weakly prime, because it can be changed into another prime (1197261420049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598630560024 + 598630560025.

It is an arithmetic number, because the mean of its divisors is an integer number (598630560025).

Almost surely, 2^{1197261120049} is an apocalyptic number.

It is an amenable number.

1197261120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197261120049 is an equidigital number, since it uses as much as digits as its factorization.

1197261120049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 1197261120049 in words is "one trillion, one hundred ninety-seven billion, two hundred sixty-one million, one hundred twenty thousand, forty-nine".