13312131361 has 2 divisors, whose sum is σ = 13312131362. Its totient is φ = 13312131360.

The previous prime is 13312131341. The next prime is 13312131379. The reversal of 13312131361 is 16313121331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9693387025 + 3618744336 = 98455^2 + 60156^2 .

It is a cyclic number.

It is not a de Polignac number, because 13312131361 - 2⁷ = 13312131233 is a prime.

It is not a weakly prime, because it can be changed into another prime (13312131311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656065680 + 6656065681.

It is an arithmetic number, because the mean of its divisors is an integer number (6656065681).

Almost surely, 2^13312131361 is an apocalyptic number.

It is an amenable number.

13312131361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13312131361 is an equidigital number, since it uses as much as digits as its factorization.

13312131361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

Adding to 13312131361 its reverse (16313121331), we get a palindrome (29625252692).

The spelling of 13312131361 in words is "thirteen billion, three hundred twelve million, one hundred thirty-one thousand, three hundred sixty-one".