112378121 has 2 divisors, whose sum is σ = 112378122. Its totient is φ = 112378120.

The previous prime is 112378117. The next prime is 112378151. The reversal of 112378121 is 121873211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 24393721 = 9380^2 + 4939^2 .

It is a cyclic number.

It is not a de Polignac number, because 112378121 - 2² = 112378117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112378151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56189060 + 56189061.

It is an arithmetic number, because the mean of its divisors is an integer number (56189061).

Almost surely, 2^112378121 is an apocalyptic number.

It is an amenable number.

112378121 is a deficient number, since it is larger than the sum of its proper divisors (1).

112378121 is an equidigital number, since it uses as much as digits as its factorization.

112378121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 26.

The square root of 112378121 is about 10600.8547296904. The cubic root of 112378121 is about 482.5702991166.

The spelling of 112378121 in words is "one hundred twelve million, three hundred seventy-eight thousand, one hundred twenty-one".