1313435441 has 2 divisors, whose sum is σ = 1313435442. Its totient is φ = 1313435440.

The previous prime is 1313435429. The next prime is 1313435443. The reversal of 1313435441 is 1445343131.

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., 673143025 + 640292416 = 25945^2 + 25304^2 .

It is an emirp because it is prime and its reverse (1445343131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313435441 - 2⁶ = 1313435377 is a prime.

It is a super-2 number, since 2×1313435441² = 3450225315349728962, which contains 22 as substring.

Together with 1313435443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1313435443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656717720 + 656717721.

It is an arithmetic number, because the mean of its divisors is an integer number (656717721).

Almost surely, 2^1313435441 is an apocalyptic number.

It is an amenable number.

1313435441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313435441 is an equidigital number, since it uses as much as digits as its factorization.

1313435441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 1313435441 is about 36241.3498782813. The cubic root of 1313435441 is about 1095.1398363286.

Adding to 1313435441 its reverse (1445343131), we get a palindrome (2758778572).

The spelling of 1313435441 in words is "one billion, three hundred thirteen million, four hundred thirty-five thousand, four hundred forty-one".