1343240113 has 4 divisors (see below), whose sum is σ = 1343914740. Its totient is φ = 1342565488.

The previous prime is 1343240111. The next prime is 1343240117. The reversal of 1343240113 is 3110423431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3110423431 = 2311 ⋅1345921.

It can be written as a sum of positive squares in 2 ways, for example, as 82137969 + 1261102144 = 9063^2 + 35512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343240113 - 2¹ = 1343240111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343240111) 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, 334318 + ... + 338311.

It is an arithmetic number, because the mean of its divisors is an integer number (335978685).

Almost surely, 2^1343240113 is an apocalyptic number.

It is an amenable number.

1343240113 is a deficient number, since it is larger than the sum of its proper divisors (674627).

1343240113 is an equidigital number, since it uses as much as digits as its factorization.

1343240113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674626.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1343240113 is about 36650.2402857062. The cubic root of 1343240113 is about 1103.3616481468.

Adding to 1343240113 its reverse (3110423431), we get a palindrome (4453663544).

The spelling of 1343240113 in words is "one billion, three hundred forty-three million, two hundred forty thousand, one hundred thirteen".