123241430202240 has 256 divisors, whose sum is σ = 448972842769920. Its totient is φ = 28168094490624.

The previous prime is 123241430202227. The next prime is 123241430202269. The reversal of 123241430202240 is 42202034142321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 123241430202198 and 123241430202207.

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, 288975399 + ... + 289401561.

It is an arithmetic number, because the mean of its divisors is an integer number (1753800167070).

Almost surely, 2^{123241430202240} is an apocalyptic number.

123241430202240 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 123241430202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224486421384960).

123241430202240 is an abundant number, since it is smaller than the sum of its proper divisors (325731412567680).

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

123241430202240 is a wasteful number, since it uses less digits than its factorization.

123241430202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447709 (or 447697 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 123241430202240 its reverse (42202034142321), we get a palindrome (165443464344561).

The spelling of 123241430202240 in words is "one hundred twenty-three trillion, two hundred forty-one billion, four hundred thirty million, two hundred two thousand, two hundred forty".