1243110343 has 2 divisors, whose sum is σ = 1243110344. Its totient is φ = 1243110342.

The previous prime is 1243110331. The next prime is 1243110347. The reversal of 1243110343 is 3430113421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243110343 - 2²⁵ = 1209555911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243110347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621555171 + 621555172.

It is an arithmetic number, because the mean of its divisors is an integer number (621555172).

Almost surely, 2^1243110343 is an apocalyptic number.

1243110343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243110343 is an equidigital number, since it uses as much as digits as its factorization.

1243110343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1243110343 is about 35257.7699663493. The cubic root of 1243110343 is about 1075.2345889335.

Adding to 1243110343 its reverse (3430113421), we get a palindrome (4673223764).

The spelling of 1243110343 in words is "one billion, two hundred forty-three million, one hundred ten thousand, three hundred forty-three".