1126431143 has 2 divisors, whose sum is σ = 1126431144. Its totient is φ = 1126431142.

The previous prime is 1126431133. The next prime is 1126431157. The reversal of 1126431143 is 3411346211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1126431143 - 2⁸ = 1126430887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126431133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563215571 + 563215572.

It is an arithmetic number, because the mean of its divisors is an integer number (563215572).

Almost surely, 2^1126431143 is an apocalyptic number.

1126431143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126431143 is an equidigital number, since it uses as much as digits as its factorization.

1126431143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 1126431143 is about 33562.3471020726. The cubic root of 1126431143 is about 1040.4827464835.

Adding to 1126431143 its reverse (3411346211), we get a palindrome (4537777354).

The spelling of 1126431143 in words is "one billion, one hundred twenty-six million, four hundred thirty-one thousand, one hundred forty-three".