1042431143 has 16 divisors (see below), whose sum is σ = 1251220320. Its totient is φ = 857972736.

The previous prime is 1042431127. The next prime is 1042431151. The reversal of 1042431143 is 3411342401.

It is a cyclic number.

It is not a de Polignac number, because 1042431143 - 2⁴ = 1042431127 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 (1042431043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119930 + ... + 128327.

It is an arithmetic number, because the mean of its divisors is an integer number (78201270).

Almost surely, 2^1042431143 is an apocalyptic number.

1042431143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1042431143 is a deficient number, since it is larger than the sum of its proper divisors (208789177).

1042431143 is a wasteful number, since it uses less digits than its factorization.

1042431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248306.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1042431143 is about 32286.7022626963. The cubic root of 1042431143 is about 1013.9482559276.

Adding to 1042431143 its reverse (3411342401), we get a palindrome (4453773544).

The spelling of 1042431143 in words is "one billion, forty-two million, four hundred thirty-one thousand, one hundred forty-three".