4240123342537 has 2 divisors, whose sum is σ = 4240123342538. Its totient is φ = 4240123342536.

The previous prime is 4240123342517. The next prime is 4240123342577. The reversal of 4240123342537 is 7352433210424.

It is an a-pointer prime, because the next prime (4240123342577) can be obtained adding 4240123342537 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3629249793481 + 610873549056 = 1905059^2 + 781584^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240123342537 - 2⁷ = 4240123342409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4240123342537.

It is not a weakly prime, because it can be changed into another prime (4240123342517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120061671268 + 2120061671269.

It is an arithmetic number, because the mean of its divisors is an integer number (2120061671269).

Almost surely, 2^{4240123342537} is an apocalyptic number.

It is an amenable number.

4240123342537 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240123342537 is an equidigital number, since it uses as much as digits as its factorization.

4240123342537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 4240123342537 in words is "four trillion, two hundred forty billion, one hundred twenty-three million, three hundred forty-two thousand, five hundred thirty-seven".