1343331243 has 16 divisors (see below), whose sum is σ = 2058746400. Its totient is φ = 864672480.

The previous prime is 1343331239. The next prime is 1343331271. The reversal of 1343331243 is 3421333431.

1343331243 is a `hidden beast` number, since 1 + 343 + 3 + 312 + 4 + 3 = 666.

It is not a de Polignac number, because 1343331243 - 2² = 1343331239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1343331043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857028 + ... + 858593.

It is an arithmetic number, because the mean of its divisors is an integer number (128671650).

Almost surely, 2^1343331243 is an apocalyptic number.

1343331243 is a deficient number, since it is larger than the sum of its proper divisors (715415157).

1343331243 is a wasteful number, since it uses less digits than its factorization.

1343331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715659 (or 1715653 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 1343331243 is about 36651.4835034000. The cubic root of 1343331243 is about 1103.3865995242.

Adding to 1343331243 its reverse (3421333431), we get a palindrome (4764664674).

The spelling of 1343331243 in words is "one billion, three hundred forty-three million, three hundred thirty-one thousand, two hundred forty-three".