43240122102731 has 2 divisors, whose sum is σ = 43240122102732. Its totient is φ = 43240122102730.

The previous prime is 43240122102703. The next prime is 43240122102763. The reversal of 43240122102731 is 13720122104234.

43240122102731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (43240122102763) can be obtained adding 43240122102731 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43240122102731 - 2¹⁰ = 43240122101707 is a prime.

It is a super-2 number, since 2×43240122102731² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43240122002731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620061051365 + 21620061051366.

It is an arithmetic number, because the mean of its divisors is an integer number (21620061051366).

Almost surely, 2^{43240122102731} is an apocalyptic number.

43240122102731 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240122102731 is an equidigital number, since it uses as much as digits as its factorization.

43240122102731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 43240122102731 its reverse (13720122104234), we get a palindrome (56960244206965).

The spelling of 43240122102731 in words is "forty-three trillion, two hundred forty billion, one hundred twenty-two million, one hundred two thousand, seven hundred thirty-one".