112312181 has 2 divisors, whose sum is σ = 112312182. Its totient is φ = 112312180.

The previous prime is 112312159. The next prime is 112312199. The reversal of 112312181 is 181213211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101808100 + 10504081 = 10090^2 + 3241^2 .

It is a cyclic number.

It is not a de Polignac number, because 112312181 - 2¹⁴ = 112295797 is a prime.

It is a super-2 number, since 2×112312181² = 25228052001953522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112312111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56156090 + 56156091.

It is an arithmetic number, because the mean of its divisors is an integer number (56156091).

Almost surely, 2^112312181 is an apocalyptic number.

It is an amenable number.

112312181 is a deficient number, since it is larger than the sum of its proper divisors (1).

112312181 is an equidigital number, since it uses as much as digits as its factorization.

112312181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 20.

The square root of 112312181 is about 10597.7441467512. The cubic root of 112312181 is about 482.4758948825.

Adding to 112312181 its reverse (181213211), we get a palindrome (293525392).

The spelling of 112312181 in words is "one hundred twelve million, three hundred twelve thousand, one hundred eighty-one".