124245205114240 has 128 divisors (see below), whose sum is σ = 339651548377920. Its totient is φ = 42573772677120.

The previous prime is 124245205114229. The next prime is 124245205114241. The reversal of 124245205114240 is 42411502542421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 124245205114240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124245205114241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237691 + ... + 15765370.

Almost surely, 2^{124245205114240} is an apocalyptic number.

124245205114240 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 124245205114240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169825774188960).

124245205114240 is an abundant number, since it is smaller than the sum of its proper divisors (215406343263680).

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

124245205114240 is a wasteful number, since it uses less digits than its factorization.

124245205114240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16004820 (or 16004808 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 37.

Adding to 124245205114240 its reverse (42411502542421), we get a palindrome (166656707656661).

The spelling of 124245205114240 in words is "one hundred twenty-four trillion, two hundred forty-five billion, two hundred five million, one hundred fourteen thousand, two hundred forty".