112138123 has 2 divisors, whose sum is σ = 112138124. Its totient is φ = 112138122.

The previous prime is 112138121. The next prime is 112138127. The reversal of 112138123 is 321831211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112138123 - 2¹ = 112138121 is a prime.

Together with 112138121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 112138094 and 112138103.

It is not a weakly prime, because it can be changed into another prime (112138121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56069061 + 56069062.

It is an arithmetic number, because the mean of its divisors is an integer number (56069062).

Almost surely, 2^112138123 is an apocalyptic number.

112138123 is a deficient number, since it is larger than the sum of its proper divisors (1).

112138123 is an equidigital number, since it uses as much as digits as its factorization.

112138123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

The square root of 112138123 is about 10589.5289319214. The cubic root of 112138123 is about 482.2265238628.

Adding to 112138123 its reverse (321831211), we get a palindrome (433969334).

The spelling of 112138123 in words is "one hundred twelve million, one hundred thirty-eight thousand, one hundred twenty-three".