1231003343 has 2 divisors, whose sum is σ = 1231003344. Its totient is φ = 1231003342.

The previous prime is 1231003327. The next prime is 1231003349. The reversal of 1231003343 is 3433001321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231003343 - 2⁴ = 1231003327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231003349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615501671 + 615501672.

It is an arithmetic number, because the mean of its divisors is an integer number (615501672).

Almost surely, 2^1231003343 is an apocalyptic number.

1231003343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231003343 is an equidigital number, since it uses as much as digits as its factorization.

1231003343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231003343 is about 35085.6572262798. The cubic root of 1231003343 is about 1071.7325246832.

Adding to 1231003343 its reverse (3433001321), we get a palindrome (4664004664).

The spelling of 1231003343 in words is "one billion, two hundred thirty-one million, three thousand, three hundred forty-three".