1020043 has 2 divisors, whose sum is σ = 1020044. Its totient is φ = 1020042.

The previous prime is 1020037. The next prime is 1020049. The reversal of 1020043 is 3400201.

1020043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (1020037) and next prime (1020049).

It is a cyclic number.

It is not a de Polignac number, because 1020043 - 2⁵ = 1020011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510021 + 510022.

It is an arithmetic number, because the mean of its divisors is an integer number (510022).

2^1020043 is an apocalyptic number.

1020043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020043 is an equidigital number, since it uses as much as digits as its factorization.

1020043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1020043 is about 1009.9717817840. The cubic root of 1020043 is about 100.6636854713.

Adding to 1020043 its reverse (3400201), we get a palindrome (4420244).

The spelling of 1020043 in words is "one million, twenty thousand, forty-three".