1311413 has 4 divisors (see below), whose sum is σ = 1313760. Its totient is φ = 1309068.

The previous prime is 1311407. The next prime is 1311419. The reversal of 1311413 is 3141131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3141131 = 7 ⋅448733.

It is an interprime number because it is at equal distance from previous prime (1311407) and next prime (1311419).

It is a cyclic number.

It is not a de Polignac number, because 1311413 - 2¹⁰ = 1310389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311419) 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, 206 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (328440).

2^1311413 is an apocalyptic number.

It is an amenable number.

1311413 is a deficient number, since it is larger than the sum of its proper divisors (2347).

1311413 is an equidigital number, since it uses as much as digits as its factorization.

1311413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its digits is 36, while the sum is 14.

The square root of 1311413 is about 1145.1694197803. The cubic root of 1311413 is about 109.4577445155.

Adding to 1311413 its reverse (3141131), we get a palindrome (4452544).

The spelling of 1311413 in words is "one million, three hundred eleven thousand, four hundred thirteen".