1431112143 has 4 divisors (see below), whose sum is σ = 1908149528. Its totient is φ = 954074760.

The previous prime is 1431112103. The next prime is 1431112153. The reversal of 1431112143 is 3412111341.

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

It is not a de Polignac number, because 1431112143 - 2¹³ = 1431103951 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 (1431112103) 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, 238518688 + ... + 238518693.

It is an arithmetic number, because the mean of its divisors is an integer number (477037382).

Almost surely, 2^1431112143 is an apocalyptic number.

1431112143 is a deficient number, since it is larger than the sum of its proper divisors (477037385).

1431112143 is an equidigital number, since it uses as much as digits as its factorization.

1431112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477037384.

The product of its digits is 288, while the sum is 21.

The square root of 1431112143 is about 37830.0428627830. The cubic root of 1431112143 is about 1126.9151623355.

Adding to 1431112143 its reverse (3412111341), we get a palindrome (4843223484).

It can be divided in two parts, 143 and 1112143, that added together give a triangular number (1112286 = T₁₄₉₁).

The spelling of 1431112143 in words is "one billion, four hundred thirty-one million, one hundred twelve thousand, one hundred forty-three".