123431444 has 12 divisors (see below), whose sum is σ = 217560000. Its totient is φ = 61271448.

The previous prime is 123431431. The next prime is 123431459. The reversal of 123431444 is 444134321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110444 + ... + 111555.

It is an arithmetic number, because the mean of its divisors is an integer number (18130000).

Almost surely, 2^123431444 is an apocalyptic number.

It is an amenable number.

123431444 is a deficient number, since it is larger than the sum of its proper divisors (94128556).

123431444 is a wasteful number, since it uses less digits than its factorization.

123431444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222142 (or 222140 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 123431444 is about 11109.9704770085. The cubic root of 123431444 is about 497.8997825250.

Adding to 123431444 its reverse (444134321), we get a palindrome (567565765).

The spelling of 123431444 in words is "one hundred twenty-three million, four hundred thirty-one thousand, four hundred forty-four".