123133112 has 8 divisors (see below), whose sum is σ = 230874600. Its totient is φ = 61566552.

The previous prime is 123133093. The next prime is 123133117. The reversal of 123133112 is 211331321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7695812 + ... + 7695827.

It is an arithmetic number, because the mean of its divisors is an integer number (28859325).

Almost surely, 2^123133112 is an apocalyptic number.

It is an amenable number.

123133112 is a deficient number, since it is larger than the sum of its proper divisors (107741488).

123133112 is a wasteful number, since it uses less digits than its factorization.

123133112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391645 (or 15391641 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 123133112 is about 11096.5360360790. The cubic root of 123133112 is about 497.4983200704.

Adding to 123133112 its reverse (211331321), we get a palindrome (334464433).

It can be divided in two parts, 1231 and 33112, that added together give a palindrome (34343).

The spelling of 123133112 in words is "one hundred twenty-three million, one hundred thirty-three thousand, one hundred twelve".