1020023 has 2 divisors, whose sum is σ = 1020024. Its totient is φ = 1020022.

The previous prime is 1020013. The next prime is 1020037. The reversal of 1020023 is 3200201.

It is a weak prime.

It is an emirp because it is prime and its reverse (3200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020023 - 2⁴ = 1020007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011 + 510012.

It is an arithmetic number, because the mean of its divisors is an integer number (510012).

2^1020023 is an apocalyptic number.

1020023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020023 is an equidigital number, since it uses as much as digits as its factorization.

1020023 is an evil number, because the sum of its binary digits is even.

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

The square root of 1020023 is about 1009.9618804688. The cubic root of 1020023 is about 100.6630275622.

Adding to 1020023 its reverse (3200201), we get a palindrome (4220224).

The spelling of 1020023 in words is "one million, twenty thousand, twenty-three".