1323131713 has 2 divisors, whose sum is σ = 1323131714. Its totient is φ = 1323131712.

The previous prime is 1323131653. The next prime is 1323131723. The reversal of 1323131713 is 3171313231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1293625089 + 29506624 = 35967^2 + 5432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323131713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323131723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661565856 + 661565857.

It is an arithmetic number, because the mean of its divisors is an integer number (661565857).

Almost surely, 2^1323131713 is an apocalyptic number.

It is an amenable number.

1323131713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323131713 is an equidigital number, since it uses as much as digits as its factorization.

1323131713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 25.

The square root of 1323131713 is about 36374.8774980755. The cubic root of 1323131713 is about 1097.8281424959.

Adding to 1323131713 its reverse (3171313231), we get a palindrome (4494444944).

It can be divided in two parts, 13231 and 31713, that added together give a palindrome (44944).

The spelling of 1323131713 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, seven hundred thirteen".