120611161251257 has 2 divisors, whose sum is σ = 120611161251258. Its totient is φ = 120611161251256.

The previous prime is 120611161251187. The next prime is 120611161251331. The reversal of 120611161251257 is 752152161116021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94064801087401 + 26546360163856 = 9698701^2 + 5152316^2 .

It is an emirp because it is prime and its reverse (752152161116021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120611161251257 - 2¹⁰ = 120611161250233 is a prime.

It is not a weakly prime, because it can be changed into another prime (120611161251557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60305580625628 + 60305580625629.

It is an arithmetic number, because the mean of its divisors is an integer number (60305580625629).

Almost surely, 2^{120611161251257} is an apocalyptic number.

It is an amenable number.

120611161251257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120611161251257 is an equidigital number, since it uses as much as digits as its factorization.

120611161251257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 120611161251257 in words is "one hundred twenty trillion, six hundred eleven billion, one hundred sixty-one million, two hundred fifty-one thousand, two hundred fifty-seven".