123441020240 has 160 divisors (see below), whose sum is σ = 307450321920. Its totient is φ = 45989019648.

The previous prime is 123441020233. The next prime is 123441020281. The reversal of 123441020240 is 42020144321.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 10605464 + ... + 10617096.

It is an arithmetic number, because the mean of its divisors is an integer number (1921564512).

Almost surely, 2^123441020240 is an apocalyptic number.

123441020240 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 123441020240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153725160960).

123441020240 is an abundant number, since it is smaller than the sum of its proper divisors (184009301680).

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

123441020240 is a wasteful number, since it uses less digits than its factorization.

123441020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11821 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 123441020240 its reverse (42020144321), we get a palindrome (165461164561).

The spelling of 123441020240 in words is "one hundred twenty-three billion, four hundred forty-one million, twenty thousand, two hundred forty".