1000423043 has 2 divisors, whose sum is σ = 1000423044. Its totient is φ = 1000423042.

The previous prime is 1000423031. The next prime is 1000423087. The reversal of 1000423043 is 3403240001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000423043 - 2¹⁸ = 1000160899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1000423003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500211521 + 500211522.

It is an arithmetic number, because the mean of its divisors is an integer number (500211522).

Almost surely, 2^1000423043 is an apocalyptic number.

1000423043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000423043 is an equidigital number, since it uses as much as digits as its factorization.

1000423043 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 17.

The square root of 1000423043 is about 31629.4647915516. The cubic root of 1000423043 is about 1000.1409944530.

Adding to 1000423043 its reverse (3403240001), we get a palindrome (4403663044).

The spelling of 1000423043 in words is "one billion, four hundred twenty-three thousand, forty-three".