1431243043 has 2 divisors, whose sum is σ = 1431243044. Its totient is φ = 1431243042.

The previous prime is 1431243019. The next prime is 1431243049. The reversal of 1431243043 is 3403421341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1431243043 - 2¹⁷ = 1431111971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1431242999 and 1431243017.

It is not a weakly prime, because it can be changed into another prime (1431243049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715621521 + 715621522.

It is an arithmetic number, because the mean of its divisors is an integer number (715621522).

Almost surely, 2^1431243043 is an apocalyptic number.

1431243043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431243043 is an equidigital number, since it uses as much as digits as its factorization.

1431243043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1431243043 is about 37831.7729296421. The cubic root of 1431243043 is about 1126.9495199266.

Adding to 1431243043 its reverse (3403421341), we get a palindrome (4834664384).

The spelling of 1431243043 in words is "one billion, four hundred thirty-one million, two hundred forty-three thousand, forty-three".