123111444232 has 64 divisors (see below), whose sum is σ = 274825353600. Its totient is φ = 50602652160.

The previous prime is 123111444229. The next prime is 123111444263. The reversal of 123111444232 is 232444111321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 123111444232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318943 + ... + 589870.

It is an arithmetic number, because the mean of its divisors is an integer number (4294146150).

Almost surely, 2^123111444232 is an apocalyptic number.

It is an amenable number.

123111444232 is an abundant number, since it is smaller than the sum of its proper divisors (151713909368).

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

123111444232 is a wasteful number, since it uses less digits than its factorization.

123111444232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908926 (or 908922 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 123111444232 its reverse (232444111321), we get a palindrome (355555555553).

The spelling of 123111444232 in words is "one hundred twenty-three billion, one hundred eleven million, four hundred forty-four thousand, two hundred thirty-two".