1343311243 has 2 divisors, whose sum is σ = 1343311244. Its totient is φ = 1343311242.

The previous prime is 1343311241. The next prime is 1343311247. The reversal of 1343311243 is 3421133431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1343311243 - 2¹ = 1343311241 is a prime.

Together with 1343311241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1343311241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671655621 + 671655622.

It is an arithmetic number, because the mean of its divisors is an integer number (671655622).

Almost surely, 2^1343311243 is an apocalyptic number.

1343311243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343311243 is an equidigital number, since it uses as much as digits as its factorization.

1343311243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 1343311243 is about 36651.2106621323. The cubic root of 1343311243 is about 1103.3811236245.

Adding to 1343311243 its reverse (3421133431), we get a palindrome (4764444674).

The spelling of 1343311243 in words is "one billion, three hundred forty-three million, three hundred eleven thousand, two hundred forty-three".