13312230257 has 2 divisors, whose sum is σ = 13312230258. Its totient is φ = 13312230256.

The previous prime is 13312230229. The next prime is 13312230353. The reversal of 13312230257 is 75203221331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13247089216 + 65141041 = 115096^2 + 8071^2 .

It is a cyclic number.

It is not a de Polignac number, because 13312230257 - 2²⁸ = 13043794801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13312230157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656115128 + 6656115129.

It is an arithmetic number, because the mean of its divisors is an integer number (6656115129).

Almost surely, 2^13312230257 is an apocalyptic number.

It is an amenable number.

13312230257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13312230257 is an equidigital number, since it uses as much as digits as its factorization.

13312230257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 13312230257 its reverse (75203221331), we get a palindrome (88515451588).

The spelling of 13312230257 in words is "thirteen billion, three hundred twelve million, two hundred thirty thousand, two hundred fifty-seven".