112320321161 has 2 divisors, whose sum is σ = 112320321162. Its totient is φ = 112320321160.

The previous prime is 112320321151. The next prime is 112320321227. The reversal of 112320321161 is 161123023211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95039641225 + 17280679936 = 308285^2 + 131456^2 .

It is a cyclic number.

It is not a de Polignac number, because 112320321161 - 2¹⁰ = 112320320137 is a prime.

It is not a weakly prime, because it can be changed into another prime (112320321151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56160160580 + 56160160581.

It is an arithmetic number, because the mean of its divisors is an integer number (56160160581).

Almost surely, 2^112320321161 is an apocalyptic number.

It is an amenable number.

112320321161 is a deficient number, since it is larger than the sum of its proper divisors (1).

112320321161 is an equidigital number, since it uses as much as digits as its factorization.

112320321161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 112320321161 its reverse (161123023211), we get a palindrome (273443344372).

The spelling of 112320321161 in words is "one hundred twelve billion, three hundred twenty million, three hundred twenty-one thousand, one hundred sixty-one".