13320210317257 has 2 divisors, whose sum is σ = 13320210317258. Its totient is φ = 13320210317256.

The previous prime is 13320210317177. The next prime is 13320210317261. The reversal of 13320210317257 is 75271301202331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10123781240521 + 3196429076736 = 3181789^2 + 1787856^2 .

It is a cyclic number.

It is not a de Polignac number, because 13320210317257 - 2¹⁵ = 13320210284489 is a prime.

It is not a weakly prime, because it can be changed into another prime (13320210311257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660105158628 + 6660105158629.

It is an arithmetic number, because the mean of its divisors is an integer number (6660105158629).

Almost surely, 2^{13320210317257} is an apocalyptic number.

It is an amenable number.

13320210317257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320210317257 is an equidigital number, since it uses as much as digits as its factorization.

13320210317257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

Adding to 13320210317257 its reverse (75271301202331), we get a palindrome (88591511519588).

The spelling of 13320210317257 in words is "thirteen trillion, three hundred twenty billion, two hundred ten million, three hundred seventeen thousand, two hundred fifty-seven".