1242024313240 has 32 divisors (see below), whose sum is σ = 2958940277280. Its totient is φ = 467585623552.

The previous prime is 1242024313217. The next prime is 1242024313241. The reversal of 1242024313240 is 423134202421.

It is a junction number, because it is equal to n+sod(n) for n = 1242024313199 and 1242024313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242024313241) 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, 913252492 + ... + 913253851.

It is an arithmetic number, because the mean of its divisors is an integer number (92466883665).

Almost surely, 2^{1242024313240} is an apocalyptic number.

1242024313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242024313240 is an abundant number, since it is smaller than the sum of its proper divisors (1716915964040).

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

1242024313240 is a wasteful number, since it uses less digits than its factorization.

1242024313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826506371 (or 1826506367 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1242024313240 its reverse (423134202421), we get a palindrome (1665158515661).

The spelling of 1242024313240 in words is "one trillion, two hundred forty-two billion, twenty-four million, three hundred thirteen thousand, two hundred forty".