100020023 has 2 divisors, whose sum is σ = 100020024. Its totient is φ = 100020022.

The previous prime is 100019977. The next prime is 100020103. The reversal of 100020023 is 320020001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100020023 - 2¹⁶ = 99954487 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 (100020523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010011 + 50010012.

It is an arithmetic number, because the mean of its divisors is an integer number (50010012).

Almost surely, 2^100020023 is an apocalyptic number.

100020023 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020023 is an equidigital number, since it uses as much as digits as its factorization.

100020023 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 100020023 is about 10001.0010998900. The cubic root of 100020023 is about 464.1898608049.

Adding to 100020023 its reverse (320020001), we get a palindrome (420040024).

The spelling of 100020023 in words is "one hundred million, twenty thousand, twenty-three".