123411172 has 24 divisors (see below), whose sum is σ = 219897216. Its totient is φ = 60591168.

The previous prime is 123411149. The next prime is 123411173. The reversal of 123411172 is 271114321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123411173) 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, 75993 + ... + 77599.

It is an arithmetic number, because the mean of its divisors is an integer number (9162384).

Almost surely, 2^123411172 is an apocalyptic number.

It is an amenable number.

123411172 is a deficient number, since it is larger than the sum of its proper divisors (96486044).

123411172 is a wasteful number, since it uses less digits than its factorization.

123411172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947 (or 1945 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 123411172 is about 11109.0581058882. The cubic root of 123411172 is about 497.8725231906.

Adding to 123411172 its reverse (271114321), we get a palindrome (394525493).

The spelling of 123411172 in words is "one hundred twenty-three million, four hundred eleven thousand, one hundred seventy-two".