1143313123 has 2 divisors, whose sum is σ = 1143313124. Its totient is φ = 1143313122.

The previous prime is 1143313091. The next prime is 1143313159. The reversal of 1143313123 is 3213133411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143313123 - 2⁵ = 1143313091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143313094 and 1143313103.

It is not a weakly prime, because it can be changed into another prime (1143313183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571656561 + 571656562.

It is an arithmetic number, because the mean of its divisors is an integer number (571656562).

Almost surely, 2^1143313123 is an apocalyptic number.

1143313123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143313123 is an equidigital number, since it uses as much as digits as its factorization.

1143313123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 1143313123 is about 33812.9135538480. The cubic root of 1143313123 is about 1045.6549462227.

Adding to 1143313123 its reverse (3213133411), we get a palindrome (4356446534).

The spelling of 1143313123 in words is "one billion, one hundred forty-three million, three hundred thirteen thousand, one hundred twenty-three".