1431143143 has 4 divisors (see below), whose sum is σ = 1454604568. Its totient is φ = 1407681720.

The previous prime is 1431143039. The next prime is 1431143149. The reversal of 1431143143 is 3413411341.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1431143143 - 2⁹ = 1431142631 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 (1431143149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11730621 + ... + 11730742.

It is an arithmetic number, because the mean of its divisors is an integer number (363651142).

Almost surely, 2^1431143143 is an apocalyptic number.

1431143143 is a deficient number, since it is larger than the sum of its proper divisors (23461425).

1431143143 is an equidigital number, since it uses as much as digits as its factorization.

1431143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23461424.

The product of its digits is 1728, while the sum is 25.

The square root of 1431143143 is about 37830.4525878293. The cubic root of 1431143143 is about 1126.9232991583.

Adding to 1431143143 its reverse (3413411341), we get a palindrome (4844554484).

The spelling of 1431143143 in words is "one billion, four hundred thirty-one million, one hundred forty-three thousand, one hundred forty-three".