1040321143 has 2 divisors, whose sum is σ = 1040321144. Its totient is φ = 1040321142.

The previous prime is 1040321111. The next prime is 1040321159. The reversal of 1040321143 is 3411230401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040321143 - 2⁵ = 1040321111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040321143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040327143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520160571 + 520160572.

It is an arithmetic number, because the mean of its divisors is an integer number (520160572).

Almost surely, 2^1040321143 is an apocalyptic number.

1040321143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040321143 is an equidigital number, since it uses as much as digits as its factorization.

1040321143 is an evil number, because the sum of its binary digits is even.

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

The square root of 1040321143 is about 32254.0097197232. The cubic root of 1040321143 is about 1013.2636780400.

Adding to 1040321143 its reverse (3411230401), we get a palindrome (4451551544).

The spelling of 1040321143 in words is "one billion, forty million, three hundred twenty-one thousand, one hundred forty-three".