20012023 has 2 divisors, whose sum is σ = 20012024. Its totient is φ = 20012022.

The previous prime is 20012011. The next prime is 20012053. The reversal of 20012023 is 32021002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006011 + 10006012.

It is an arithmetic number, because the mean of its divisors is an integer number (10006012).

Almost surely, 2^20012023 is an apocalyptic number.

20012023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012023 is an equidigital number, since it uses as much as digits as its factorization.

20012023 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 20012023 is about 4473.4799653067. The cubic root of 20012023 is about 271.4961431688.

Adding to 20012023 its reverse (32021002), we get a palindrome (52033025).

The spelling of 20012023 in words is "twenty million, twelve thousand, twenty-three".