1240530312120 has 256 divisors, whose sum is σ = 4148987443200. Its totient is φ = 294145167360.

The previous prime is 1240530312089. The next prime is 1240530312127. The reversal of 1240530312120 is 212130350421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240530312127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110983972 + ... + 110995148.

It is an arithmetic number, because the mean of its divisors is an integer number (16206982200).

Almost surely, 2^{1240530312120} is an apocalyptic number.

1240530312120 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 1240530312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2074493721600).

1240530312120 is an abundant number, since it is smaller than the sum of its proper divisors (2908457131080).

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

1240530312120 is a wasteful number, since it uses less digits than its factorization.

1240530312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13038 (or 13034 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1240530312120 its reverse (212130350421), we get a palindrome (1452660662541).

The spelling of 1240530312120 in words is "one trillion, two hundred forty billion, five hundred thirty million, three hundred twelve thousand, one hundred twenty".