112234456781 has 2 divisors, whose sum is σ = 112234456782. Its totient is φ = 112234456780.

The previous prime is 112234456759. The next prime is 112234456823. The reversal of 112234456781 is 187654432211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111763176100 + 471280681 = 334310^2 + 21709^2 .

It is a cyclic number.

It is not a de Polignac number, because 112234456781 - 2¹⁰ = 112234455757 is a prime.

It is a super-2 number, since 2×112234456781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112234456721) 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, 56117228390 + 56117228391.

It is an arithmetic number, because the mean of its divisors is an integer number (56117228391).

Almost surely, 2^112234456781 is an apocalyptic number.

It is an amenable number.

112234456781 is a deficient number, since it is larger than the sum of its proper divisors (1).

112234456781 is an equidigital number, since it uses as much as digits as its factorization.

112234456781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

Adding to 112234456781 its reverse (187654432211), we get a palindrome (299888888992).

The spelling of 112234456781 in words is "one hundred twelve billion, two hundred thirty-four million, four hundred fifty-six thousand, seven hundred eighty-one".