123331231245444 has 24 divisors (see below), whose sum is σ = 287814682320480. Its totient is φ = 41104437641664.

The previous prime is 123331231245407. The next prime is 123331231245463. The reversal of 123331231245444 is 444542132133321.

It is a junction number, because it is equal to n+sod(n) for n = 123331231245396 and 123331231245405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746510649 + ... + 746675840.

It is an arithmetic number, because the mean of its divisors is an integer number (11992278430020).

Almost surely, 2^{123331231245444} is an apocalyptic number.

It is an amenable number.

123331231245444 is an abundant number, since it is smaller than the sum of its proper divisors (164483451075036).

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

123331231245444 is a wasteful number, since it uses less digits than its factorization.

123331231245444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493193379 (or 1493193377 counting only the distinct ones).

The product of its digits is 829440, while the sum is 42.

Adding to 123331231245444 its reverse (444542132133321), we get a palindrome (567873363378765).

The spelling of 123331231245444 in words is "one hundred twenty-three trillion, three hundred thirty-one billion, two hundred thirty-one million, two hundred forty-five thousand, four hundred forty-four".