120397175761 has 2 divisors, whose sum is σ = 120397175762. Its totient is φ = 120397175760.

The previous prime is 120397175747. The next prime is 120397175783. The reversal of 120397175761 is 167571793021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96605964225 + 23791211536 = 310815^2 + 154244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120397175761 is a prime.

It is not a weakly prime, because it can be changed into another prime (120397175741) 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, 60198587880 + 60198587881.

It is an arithmetic number, because the mean of its divisors is an integer number (60198587881).

Almost surely, 2^120397175761 is an apocalyptic number.

It is an amenable number.

120397175761 is a deficient number, since it is larger than the sum of its proper divisors (1).

120397175761 is an equidigital number, since it uses as much as digits as its factorization.

120397175761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 49.

The spelling of 120397175761 in words is "one hundred twenty billion, three hundred ninety-seven million, one hundred seventy-five thousand, seven hundred sixty-one".