10440320213117 has 2 divisors, whose sum is σ = 10440320213118. Its totient is φ = 10440320213116.

The previous prime is 10440320213017. The next prime is 10440320213123. The reversal of 10440320213117 is 71131202304401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5776841092036 + 4663479121081 = 2403506^2 + 2159509^2 .

It is an emirp because it is prime and its reverse (71131202304401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10440320213117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10440320213117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10440320213137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5220160106558 + 5220160106559.

It is an arithmetic number, because the mean of its divisors is an integer number (5220160106559).

Almost surely, 2^{10440320213117} is an apocalyptic number.

It is an amenable number.

10440320213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

10440320213117 is an equidigital number, since it uses as much as digits as its factorization.

10440320213117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 10440320213117 its reverse (71131202304401), we get a palindrome (81571522517518).

The spelling of 10440320213117 in words is "ten trillion, four hundred forty billion, three hundred twenty million, two hundred thirteen thousand, one hundred seventeen".