123143111133144 has 16 divisors (see below), whose sum is σ = 307857777832920. Its totient is φ = 41047703711040.

The previous prime is 123143111133143. The next prime is 123143111133179. The reversal of 123143111133144 is 441331111341321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143111133143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565481481917 + ... + 2565481481964.

Almost surely, 2^{123143111133144} is an apocalyptic number.

It is an amenable number.

123143111133144 is an abundant number, since it is smaller than the sum of its proper divisors (184714666699776).

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

123143111133144 is a wasteful number, since it uses less digits than its factorization.

123143111133144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130962963890 (or 5130962963886 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

Adding to 123143111133144 its reverse (441331111341321), we get a palindrome (564474222474465).

The spelling of 123143111133144 in words is "one hundred twenty-three trillion, one hundred forty-three billion, one hundred eleven million, one hundred thirty-three thousand, one hundred forty-four".