1020036443 has 2 divisors, whose sum is σ = 1020036444. Its totient is φ = 1020036442.

The previous prime is 1020036421. The next prime is 1020036467. The reversal of 1020036443 is 3446300201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020036443 - 2²⁰ = 1018987867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1020036473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510018221 + 510018222.

It is an arithmetic number, because the mean of its divisors is an integer number (510018222).

Almost surely, 2^1020036443 is an apocalyptic number.

1020036443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020036443 is an equidigital number, since it uses as much as digits as its factorization.

1020036443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1020036443 is about 31938.0093775426. The cubic root of 1020036443 is about 1006.6346977675.

Adding to 1020036443 its reverse (3446300201), we get a palindrome (4466336644).

The spelling of 1020036443 in words is "one billion, twenty million, thirty-six thousand, four hundred forty-three".