1240243430211 has 12 divisors (see below), whose sum is σ = 1798433407992. Its totient is φ = 823611718656.

The previous prime is 1240243430207. The next prime is 1240243430243. The reversal of 1240243430211 is 1120343420421.

1240243430211 is a `hidden beast` number, since 1 + 2 + 402 + 4 + 3 + 43 + 0 + 211 = 666.

It is not a de Polignac number, because 1240243430211 - 2² = 1240243430207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240243420211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268100461 + ... + 268105086.

It is an arithmetic number, because the mean of its divisors is an integer number (149869450666).

Almost surely, 2^{1240243430211} is an apocalyptic number.

1240243430211 is a deficient number, since it is larger than the sum of its proper divisors (558189977781).

1240243430211 is a wasteful number, since it uses less digits than its factorization.

1240243430211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536205810 (or 536205807 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1240243430211 its reverse (1120343420421), we get a palindrome (2360586850632).

The spelling of 1240243430211 in words is "one trillion, two hundred forty billion, two hundred forty-three million, four hundred thirty thousand, two hundred eleven".