123343431144 has 32 divisors (see below), whose sum is σ = 308427937920. Its totient is φ = 41105229056.

The previous prime is 123343431143. The next prime is 123343431209. The reversal of 123343431144 is 441134343321.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (123343431143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468657 + ... + 682880.

It is an arithmetic number, because the mean of its divisors is an integer number (9638373060).

Almost surely, 2^123343431144 is an apocalyptic number.

It is an amenable number.

123343431144 is an abundant number, since it is smaller than the sum of its proper divisors (185084506776).

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

123343431144 is a wasteful number, since it uses less digits than its factorization.

123343431144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156009 (or 1156005 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

Adding to 123343431144 its reverse (441134343321), we get a palindrome (564477774465).

The spelling of 123343431144 in words is "one hundred twenty-three billion, three hundred forty-three million, four hundred thirty-one thousand, one hundred forty-four".