123103112 has 32 divisors (see below), whose sum is σ = 255264480. Its totient is φ = 55186560.

The previous prime is 123103111. The next prime is 123103151. The reversal of 123103112 is 211301321.

It is not an unprimeable number, because it can be changed into a prime (123103111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3158 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (7977015).

Almost surely, 2^123103112 is an apocalyptic number.

It is an amenable number.

123103112 is an abundant number, since it is smaller than the sum of its proper divisors (132161368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123103112 is a wasteful number, since it uses less digits than its factorization.

123103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19253 (or 19249 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123103112 is about 11095.1841805353. The cubic root of 123103112 is about 497.4579134957.

Adding to 123103112 its reverse (211301321), we get a palindrome (334404433).

The spelling of 123103112 in words is "one hundred twenty-three million, one hundred three thousand, one hundred twelve".