1240112134243 has 16 divisors (see below), whose sum is σ = 1307192372640. Its totient is φ = 1173213849600.

The previous prime is 1240112134231. The next prime is 1240112134297. The reversal of 1240112134243 is 3424312110421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1240112134243 - 2⁵ = 1240112134211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240112134643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66947823 + ... + 66966343.

It is an arithmetic number, because the mean of its divisors is an integer number (81699523290).

Almost surely, 2^{1240112134243} is an apocalyptic number.

1240112134243 is a deficient number, since it is larger than the sum of its proper divisors (67080238397).

1240112134243 is a wasteful number, since it uses less digits than its factorization.

1240112134243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23238.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1240112134243 its reverse (3424312110421), we get a palindrome (4664424244664).

The spelling of 1240112134243 in words is "one trillion, two hundred forty billion, one hundred twelve million, one hundred thirty-four thousand, two hundred forty-three".