1002042043 has 2 divisors, whose sum is σ = 1002042044. Its totient is φ = 1002042042.

The previous prime is 1002042037. The next prime is 1002042061. The reversal of 1002042043 is 3402402001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002042043 is a prime.

It is a super-2 number, since 2×1002042043² = 2008176511879227698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002042143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501021021 + 501021022.

It is an arithmetic number, because the mean of its divisors is an integer number (501021022).

Almost surely, 2^1002042043 is an apocalyptic number.

1002042043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002042043 is an equidigital number, since it uses as much as digits as its factorization.

1002042043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1002042043 is about 31655.0476701584. The cubic root of 1002042043 is about 1000.6802181983.

Adding to 1002042043 its reverse (3402402001), we get a palindrome (4404444044).

The spelling of 1002042043 in words is "one billion, two million, forty-two thousand, forty-three".