1313354443 has 4 divisors (see below), whose sum is σ = 1313748568. Its totient is φ = 1312960320.

The previous prime is 1313354389. The next prime is 1313354453. The reversal of 1313354443 is 3444533131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3444533131 = 13 ⋅264964087.

It is a cyclic number.

It is not a de Polignac number, because 1313354443 - 2⁹ = 1313353931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313354453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192021 + ... + 198742.

It is an arithmetic number, because the mean of its divisors is an integer number (328437142).

Almost surely, 2^1313354443 is an apocalyptic number.

1313354443 is a deficient number, since it is larger than the sum of its proper divisors (394125).

1313354443 is an equidigital number, since it uses as much as digits as its factorization.

1313354443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394124.

The product of its digits is 25920, while the sum is 31.

The square root of 1313354443 is about 36240.2323806015. The cubic root of 1313354443 is about 1095.1173238758.

Adding to 1313354443 its reverse (3444533131), we get a palindrome (4757887574).

It can be divided in two parts, 13133 and 54443, that added together give a palindrome (67576).

The spelling of 1313354443 in words is "one billion, three hundred thirteen million, three hundred fifty-four thousand, four hundred forty-three".