1123234172 has 18 divisors (see below), whose sum is σ = 2074563288. Its totient is φ = 532057608.

The previous prime is 1123234171. The next prime is 1123234181. The reversal of 1123234172 is 2714323211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123234171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387488 + ... + 390375.

It is an arithmetic number, because the mean of its divisors is an integer number (115253516).

Almost surely, 2^1123234172 is an apocalyptic number.

It is an amenable number.

1123234172 is a deficient number, since it is larger than the sum of its proper divisors (951329116).

1123234172 is a wasteful number, since it uses less digits than its factorization.

1123234172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777905 (or 777884 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 1123234172 is about 33514.6859152820. The cubic root of 1123234172 is about 1039.4974680125.

Adding to 1123234172 its reverse (2714323211), we get a palindrome (3837557383).

The spelling of 1123234172 in words is "one billion, one hundred twenty-three million, two hundred thirty-four thousand, one hundred seventy-two".