112112409989 has 2 divisors, whose sum is σ = 112112409990. Its totient is φ = 112112409988.

The previous prime is 112112409979. The next prime is 112112409991. The reversal of 112112409989 is 989904211211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72244301089 + 39868108900 = 268783^2 + 199670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112112409989 is a prime.

Together with 112112409991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112112409979) 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, 56056204994 + 56056204995.

It is an arithmetic number, because the mean of its divisors is an integer number (56056204995).

Almost surely, 2^112112409989 is an apocalyptic number.

It is an amenable number.

112112409989 is a deficient number, since it is larger than the sum of its proper divisors (1).

112112409989 is an equidigital number, since it uses as much as digits as its factorization.

112112409989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 112112409989 in words is "one hundred twelve billion, one hundred twelve million, four hundred nine thousand, nine hundred eighty-nine".