140123036717 has 2 divisors, whose sum is σ = 140123036718. Its totient is φ = 140123036716.

The previous prime is 140123036633. The next prime is 140123036761. The reversal of 140123036717 is 717630321041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73791549316 + 66331487401 = 271646^2 + 257549^2 .

It is a cyclic number.

It is not a de Polignac number, because 140123036717 - 2¹⁸ = 140122774573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140123036017) 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, 70061518358 + 70061518359.

It is an arithmetic number, because the mean of its divisors is an integer number (70061518359).

Almost surely, 2^140123036717 is an apocalyptic number.

It is an amenable number.

140123036717 is a deficient number, since it is larger than the sum of its proper divisors (1).

140123036717 is an equidigital number, since it uses as much as digits as its factorization.

140123036717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

Adding to 140123036717 its reverse (717630321041), we get a palindrome (857753357758).

The spelling of 140123036717 in words is "one hundred forty billion, one hundred twenty-three million, thirty-six thousand, seven hundred seventeen".