123112441 has 4 divisors (see below), whose sum is σ = 123800400. Its totient is φ = 122424484.

The previous prime is 123112427. The next prime is 123112459. The reversal of 123112441 is 144211321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144211321 = 7229 ⋅19949.

It is a cyclic number.

It is not a de Polignac number, because 123112441 - 2⁷ = 123112313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123112421) 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, 343711 + ... + 344068.

It is an arithmetic number, because the mean of its divisors is an integer number (30950100).

Almost surely, 2^123112441 is an apocalyptic number.

It is an amenable number.

123112441 is a deficient number, since it is larger than the sum of its proper divisors (687959).

123112441 is an equidigital number, since it uses as much as digits as its factorization.

123112441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687958.

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

The square root of 123112441 is about 11095.6045801930. The cubic root of 123112441 is about 497.4704792968.

Adding to 123112441 its reverse (144211321), we get a palindrome (267323762).

The spelling of 123112441 in words is "one hundred twenty-three million, one hundred twelve thousand, four hundred forty-one".