123112033 has 4 divisors (see below), whose sum is σ = 134304048. Its totient is φ = 111920020.

The previous prime is 123112019. The next prime is 123112051. The reversal of 123112033 is 330211321.

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: 330211321 = 11 ⋅30019211.

It is a cyclic number.

It is not a de Polignac number, because 123112033 - 2¹⁷ = 122980961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123111998 and 123112016.

It is not an unprimeable number, because it can be changed into a prime (123112063) 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, 5595991 + ... + 5596012.

It is an arithmetic number, because the mean of its divisors is an integer number (33576012).

Almost surely, 2^123112033 is an apocalyptic number.

It is an amenable number.

123112033 is a deficient number, since it is larger than the sum of its proper divisors (11192015).

123112033 is a wasteful number, since it uses less digits than its factorization.

123112033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11192014.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 123112033 is about 11095.5861945190. The cubic root of 123112033 is about 497.4699297499.

Adding to 123112033 its reverse (330211321), we get a palindrome (453323354).

The spelling of 123112033 in words is "one hundred twenty-three million, one hundred twelve thousand, thirty-three".