1313443141 has 2 divisors, whose sum is σ = 1313443142. Its totient is φ = 1313443140.

The previous prime is 1313443099. The next prime is 1313443151. The reversal of 1313443141 is 1413443131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013148900 + 300294241 = 31830^2 + 17329^2 .

It is an emirp because it is prime and its reverse (1413443131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313443141 - 2⁷ = 1313443013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313443151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656721570 + 656721571.

It is an arithmetic number, because the mean of its divisors is an integer number (656721571).

Almost surely, 2^1313443141 is an apocalyptic number.

It is an amenable number.

1313443141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313443141 is an equidigital number, since it uses as much as digits as its factorization.

1313443141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 1313443141 is about 36241.4561103717. The cubic root of 1313443141 is about 1095.1419764059.

Adding to 1313443141 its reverse (1413443131), we get a palindrome (2726886272).

The spelling of 1313443141 in words is "one billion, three hundred thirteen million, four hundred forty-three thousand, one hundred forty-one".