11342813 has 4 divisors (see below), whose sum is σ = 11498268. Its totient is φ = 11187360.

The previous prime is 11342759. The next prime is 11342819. The reversal of 11342813 is 31824311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31824311 = 47 ⋅677113.

It can be written as a sum of positive squares in 2 ways, for example, as 8868484 + 2474329 = 2978^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 11342813 - 2¹⁸ = 11080669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11342819) 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, 77618 + ... + 77763.

It is an arithmetic number, because the mean of its divisors is an integer number (2874567).

Almost surely, 2^11342813 is an apocalyptic number.

It is an amenable number.

11342813 is a deficient number, since it is larger than the sum of its proper divisors (155455).

11342813 is an equidigital number, since it uses as much as digits as its factorization.

11342813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155454.

The product of its digits is 576, while the sum is 23.

The square root of 11342813 is about 3367.9092921277. The cubic root of 11342813 is about 224.6847469749.

The spelling of 11342813 in words is "eleven million, three hundred forty-two thousand, eight hundred thirteen".