1431244143 has 12 divisors (see below), whose sum is σ = 2362688848. Its totient is φ = 817853760.

The previous prime is 1431244109. The next prime is 1431244169. The reversal of 1431244143 is 3414421341.

It is not a de Polignac number, because 1431244143 - 2⁶ = 1431244079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431244193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11359018 + ... + 11359143.

Almost surely, 2^1431244143 is an apocalyptic number.

1431244143 is a deficient number, since it is larger than the sum of its proper divisors (931444705).

1431244143 is a wasteful number, since it uses less digits than its factorization.

1431244143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22718174 (or 22718171 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1431244143 is about 37831.7874676838. The cubic root of 1431244143 is about 1126.9498086370.

Adding to 1431244143 its reverse (3414421341), we get a palindrome (4845665484).

The spelling of 1431244143 in words is "one billion, four hundred thirty-one million, two hundred forty-four thousand, one hundred forty-three".