1000020023 has 2 divisors, whose sum is σ = 1000020024. Its totient is φ = 1000020022.

The previous prime is 1000020011. The next prime is 1000020029. The reversal of 1000020023 is 3200200001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000020023 - 2⁸ = 1000019767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010011 + 500010012.

It is an arithmetic number, because the mean of its divisors is an integer number (500010012).

Almost surely, 2^1000020023 is an apocalyptic number.

1000020023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000020023 is an equidigital number, since it uses as much as digits as its factorization.

1000020023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1000020023 is about 31623.0931915270. The cubic root of 1000020023 is about 1000.0066742888.

Adding to 1000020023 its reverse (3200200001), we get a palindrome (4200220024).

The spelling of 1000020023 in words is "one billion, twenty thousand, twenty-three".