1343231213 has 2 divisors, whose sum is σ = 1343231214. Its totient is φ = 1343231212.

The previous prime is 1343231203. The next prime is 1343231231. The reversal of 1343231213 is 3121323431.

Together with next prime (1343231231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920394244 + 422836969 = 30338^2 + 20563^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343231213 - 2⁸ = 1343230957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343231203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671615606 + 671615607.

It is an arithmetic number, because the mean of its divisors is an integer number (671615607).

Almost surely, 2^1343231213 is an apocalyptic number.

It is an amenable number.

1343231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343231213 is an equidigital number, since it uses as much as digits as its factorization.

1343231213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 1343231213 is about 36650.1188674744. The cubic root of 1343231213 is about 1103.3592112679.

Adding to 1343231213 its reverse (3121323431), we get a palindrome (4464554644).

The spelling of 1343231213 in words is "one billion, three hundred forty-three million, two hundred thirty-one thousand, two hundred thirteen".