123041243000 has 128 divisors (see below), whose sum is σ = 318445283520. Its totient is φ = 44202585600.

The previous prime is 123041242997. The next prime is 123041243027. The reversal of 123041243000 is 342140321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353099 + ... + 608901.

Almost surely, 2^123041243000 is an apocalyptic number.

123041243000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123041243000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159222641760).

123041243000 is an abundant number, since it is smaller than the sum of its proper divisors (195404040520).

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

123041243000 is a wasteful number, since it uses less digits than its factorization.

123041243000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255874 (or 255860 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123041243000 its reverse (342140321), we get a palindrome (123383383321).

The spelling of 123041243000 in words is "one hundred twenty-three billion, forty-one million, two hundred forty-three thousand".