1240243311504 has 40 divisors (see below), whose sum is σ = 3392430236640. Its totient is φ = 389095940608.

The previous prime is 1240243311493. The next prime is 1240243311509. The reversal of 1240243311504 is 4051133420421.

It is not an unprimeable number, because it can be changed into a prime (1240243311509) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 759952194 + ... + 759953825.

It is an arithmetic number, because the mean of its divisors is an integer number (84810755916).

Almost surely, 2^{1240243311504} is an apocalyptic number.

It is an amenable number.

1240243311504 is an abundant number, since it is smaller than the sum of its proper divisors (2152186925136).

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

1240243311504 is a wasteful number, since it uses less digits than its factorization.

1240243311504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519906047 (or 1519906041 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1240243311504 its reverse (4051133420421), we get a palindrome (5291376731925).

The spelling of 1240243311504 in words is "one trillion, two hundred forty billion, two hundred forty-three million, three hundred eleven thousand, five hundred four".