1343131243 has 2 divisors, whose sum is σ = 1343131244. Its totient is φ = 1343131242.

The previous prime is 1343131217. The next prime is 1343131277. The reversal of 1343131243 is 3421313431.

It is a weak prime.

It is an emirp because it is prime and its reverse (3421313431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1343131243 - 2⁹ = 1343130731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343131213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671565621 + 671565622.

It is an arithmetic number, because the mean of its divisors is an integer number (671565622).

Almost surely, 2^1343131243 is an apocalyptic number.

1343131243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343131243 is an equidigital number, since it uses as much as digits as its factorization.

1343131243 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 1343131243 is about 36648.7549993175. The cubic root of 1343131243 is about 1103.3318380811.

Adding to 1343131243 its reverse (3421313431), we get a palindrome (4764444674).

The spelling of 1343131243 in words is "one billion, three hundred forty-three million, one hundred thirty-one thousand, two hundred forty-three".