1112342123 has 4 divisors (see below), whose sum is σ = 1160704848. Its totient is φ = 1063979400.

The previous prime is 1112342117. The next prime is 1112342149. The reversal of 1112342123 is 3212432111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1112342123 - 2⁶ = 1112342059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112342095 and 1112342104.

It is not an unprimeable number, because it can be changed into a prime (1112342173) 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 in 3 ways as a sum of consecutive naturals, for example, 24181328 + ... + 24181373.

It is an arithmetic number, because the mean of its divisors is an integer number (290176212).

Almost surely, 2^1112342123 is an apocalyptic number.

1112342123 is a deficient number, since it is larger than the sum of its proper divisors (48362725).

1112342123 is an equidigital number, since it uses as much as digits as its factorization.

1112342123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48362724.

The product of its digits is 288, while the sum is 20.

The square root of 1112342123 is about 33351.7934000557. The cubic root of 1112342123 is about 1036.1265314937.

Adding to 1112342123 its reverse (3212432111), we get a palindrome (4324774234).

The spelling of 1112342123 in words is "one billion, one hundred twelve million, three hundred forty-two thousand, one hundred twenty-three".