1313143112249 has 2 divisors, whose sum is σ = 1313143112250. Its totient is φ = 1313143112248.

The previous prime is 1313143112233. The next prime is 1313143112257. The reversal of 1313143112249 is 9422113413131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868996840000 + 444146272249 = 932200^2 + 666443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313143112249 - 2⁴ = 1313143112233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313143112209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656571556124 + 656571556125.

It is an arithmetic number, because the mean of its divisors is an integer number (656571556125).

Almost surely, 2^{1313143112249} is an apocalyptic number.

It is an amenable number.

1313143112249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313143112249 is an equidigital number, since it uses as much as digits as its factorization.

1313143112249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The spelling of 1313143112249 in words is "one trillion, three hundred thirteen billion, one hundred forty-three million, one hundred twelve thousand, two hundred forty-nine".