112787321 has 2 divisors, whose sum is σ = 112787322. Its totient is φ = 112787320.

The previous prime is 112787317. The next prime is 112787327. The reversal of 112787321 is 123787211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 49505296 = 7955^2 + 7036^2 .

It is an emirp because it is prime and its reverse (123787211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112787321 - 2² = 112787317 is a prime.

It is not a weakly prime, because it can be changed into another prime (112787327) 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, 56393660 + 56393661.

It is an arithmetic number, because the mean of its divisors is an integer number (56393661).

Almost surely, 2^112787321 is an apocalyptic number.

It is an amenable number.

112787321 is a deficient number, since it is larger than the sum of its proper divisors (1).

112787321 is an equidigital number, since it uses as much as digits as its factorization.

112787321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 32.

The square root of 112787321 is about 10620.1375226501. The cubic root of 112787321 is about 483.1553138566.

The spelling of 112787321 in words is "one hundred twelve million, seven hundred eighty-seven thousand, three hundred twenty-one".