1112122423 has 4 divisors (see below), whose sum is σ = 1112738328. Its totient is φ = 1111506520.

The previous prime is 1112122387. The next prime is 1112122433. The reversal of 1112122423 is 3242212111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3242212111 = 439 ⋅7385449.

It is a cyclic number.

It is not a de Polignac number, because 1112122423 - 2¹³ = 1112114231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112122423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112122433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305236 + ... + 308857.

It is an arithmetic number, because the mean of its divisors is an integer number (278184582).

Almost surely, 2^1112122423 is an apocalyptic number.

1112122423 is a deficient number, since it is larger than the sum of its proper divisors (615905).

1112122423 is an equidigital number, since it uses as much as digits as its factorization.

1112122423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615904.

The product of its digits is 192, while the sum is 19.

The square root of 1112122423 is about 33348.4995614495. The cubic root of 1112122423 is about 1036.0583114791.

Adding to 1112122423 its reverse (3242212111), we get a palindrome (4354334534).

The spelling of 1112122423 in words is "one billion, one hundred twelve million, one hundred twenty-two thousand, four hundred twenty-three".