2043240213247 has 2 divisors, whose sum is σ = 2043240213248. Its totient is φ = 2043240213246.

The previous prime is 2043240213227. The next prime is 2043240213331. The reversal of 2043240213247 is 7423120423402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043240213247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043240213227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021620106623 + 1021620106624.

It is an arithmetic number, because the mean of its divisors is an integer number (1021620106624).

Almost surely, 2^{2043240213247} is an apocalyptic number.

2043240213247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043240213247 is an equidigital number, since it uses as much as digits as its factorization.

2043240213247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 2043240213247 its reverse (7423120423402), we get a palindrome (9466360636649).

The spelling of 2043240213247 in words is "two trillion, forty-three billion, two hundred forty million, two hundred thirteen thousand, two hundred forty-seven".