112565420987 has 2 divisors, whose sum is σ = 112565420988. Its totient is φ = 112565420986.

The previous prime is 112565420983. The next prime is 112565421083. The reversal of 112565420987 is 789024565211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112565420987 - 2² = 112565420983 is a prime.

It is not a weakly prime, because it can be changed into another prime (112565420983) 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, 56282710493 + 56282710494.

It is an arithmetic number, because the mean of its divisors is an integer number (56282710494).

Almost surely, 2^112565420987 is an apocalyptic number.

112565420987 is a deficient number, since it is larger than the sum of its proper divisors (1).

112565420987 is an equidigital number, since it uses as much as digits as its factorization.

112565420987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 112565420987 in words is "one hundred twelve billion, five hundred sixty-five million, four hundred twenty thousand, nine hundred eighty-seven".