112173431 has 2 divisors, whose sum is σ = 112173432. Its totient is φ = 112173430.

The previous prime is 112173403. The next prime is 112173433. The reversal of 112173431 is 134371211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112173431 - 2¹⁰ = 112172407 is a prime.

It is a super-2 number, since 2×112173431² = 25165757244623522, which contains 22 as substring.

Together with 112173433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112173397 and 112173406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112173433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56086715 + 56086716.

It is an arithmetic number, because the mean of its divisors is an integer number (56086716).

Almost surely, 2^112173431 is an apocalyptic number.

112173431 is a deficient number, since it is larger than the sum of its proper divisors (1).

112173431 is an equidigital number, since it uses as much as digits as its factorization.

112173431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 23.

The square root of 112173431 is about 10591.1959192529. The cubic root of 112173431 is about 482.2771301061.

The spelling of 112173431 in words is "one hundred twelve million, one hundred seventy-three thousand, four hundred thirty-one".