1142031043 has 4 divisors (see below), whose sum is σ = 1202137960. Its totient is φ = 1081924128.

The previous prime is 1142031017. The next prime is 1142031061. The reversal of 1142031043 is 3401302411.

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 1142031043 - 2⁹ = 1142030531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 60106897 = 1142031043 / (1 + 1 + 4 + 2 + 0 + 3 + 1 + 0 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142031043.

It is not an unprimeable number, because it can be changed into a prime (1142031073) 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, 30053430 + ... + 30053467.

It is an arithmetic number, because the mean of its divisors is an integer number (300534490).

Almost surely, 2^1142031043 is an apocalyptic number.

1142031043 is a deficient number, since it is larger than the sum of its proper divisors (60106917).

1142031043 is an equidigital number, since it uses as much as digits as its factorization.

1142031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60106916.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1142031043 is about 33793.9497987436. The cubic root of 1142031043 is about 1045.2639437674.

Adding to 1142031043 its reverse (3401302411), we get a palindrome (4543333454).

The spelling of 1142031043 in words is "one billion, one hundred forty-two million, thirty-one thousand, forty-three".