124540344220 has 24 divisors (see below), whose sum is σ = 263849194224. Its totient is φ = 49375286016.

The previous prime is 124540344199. The next prime is 124540344223. The reversal of 124540344220 is 22443045421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124540344223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27550914 + ... + 27555433.

It is an arithmetic number, because the mean of its divisors is an integer number (10993716426).

Almost surely, 2^124540344220 is an apocalyptic number.

124540344220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124540344220 is an abundant number, since it is smaller than the sum of its proper divisors (139308850004).

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

124540344220 is a wasteful number, since it uses less digits than its factorization.

124540344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55106469 (or 55106467 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 124540344220 its reverse (22443045421), we get a palindrome (146983389641).

The spelling of 124540344220 in words is "one hundred twenty-four billion, five hundred forty million, three hundred forty-four thousand, two hundred twenty".