123331144 has 16 divisors (see below), whose sum is σ = 238705920. Its totient is φ = 59676240.

The previous prime is 123331133. The next prime is 123331151. The reversal of 123331144 is 441133321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248404 + ... + 248899.

It is an arithmetic number, because the mean of its divisors is an integer number (14919120).

Almost surely, 2^123331144 is an apocalyptic number.

It is an amenable number.

123331144 is a deficient number, since it is larger than the sum of its proper divisors (115374776).

123331144 is a wasteful number, since it uses less digits than its factorization.

123331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497340 (or 497336 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 123331144 is about 11105.4555962374. The cubic root of 123331144 is about 497.7648820503.

Adding to 123331144 its reverse (441133321), we get a palindrome (564464465).

The spelling of 123331144 in words is "one hundred twenty-three million, three hundred thirty-one thousand, one hundred forty-four".