112456123861 has 2 divisors, whose sum is σ = 112456123862. Its totient is φ = 112456123860.

The previous prime is 112456123613. The next prime is 112456123867. The reversal of 112456123861 is 168321654211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104992200625 + 7463923236 = 324025^2 + 86394^2 .

It is a cyclic number.

It is not a de Polignac number, because 112456123861 - 2²¹ = 112454026709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112456123867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56228061930 + 56228061931.

It is an arithmetic number, because the mean of its divisors is an integer number (56228061931).

Almost surely, 2^112456123861 is an apocalyptic number.

It is an amenable number.

112456123861 is a deficient number, since it is larger than the sum of its proper divisors (1).

112456123861 is an equidigital number, since it uses as much as digits as its factorization.

112456123861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The spelling of 112456123861 in words is "one hundred twelve billion, four hundred fifty-six million, one hundred twenty-three thousand, eight hundred sixty-one".