1240243313312 has 24 divisors (see below), whose sum is σ = 2447368147476. Its totient is φ = 618689498112.

The previous prime is 1240243313297. The next prime is 1240243313339. The reversal of 1240243313312 is 2133133420421.

It can be written as a sum of positive squares in 2 ways, for example, as 1226414494096 + 13828819216 = 1107436^2 + 117596^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44740883 + ... + 44768594.

Almost surely, 2^{1240243313312} is an apocalyptic number.

It is an amenable number.

1240243313312 is a deficient number, since it is larger than the sum of its proper divisors (1207124834164).

1240243313312 is an equidigital number, since it uses as much as digits as its factorization.

1240243313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89509920 (or 89509912 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1240243313312 its reverse (2133133420421), we get a palindrome (3373376733733).

The spelling of 1240243313312 in words is "one trillion, two hundred forty billion, two hundred forty-three million, three hundred thirteen thousand, three hundred twelve".