20049023 has 2 divisors, whose sum is σ = 20049024. Its totient is φ = 20049022.

The previous prime is 20048981. The next prime is 20049049. The reversal of 20049023 is 32094002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20049023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20048986 and 20049004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20049083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024511 + 10024512.

It is an arithmetic number, because the mean of its divisors is an integer number (10024512).

Almost surely, 2^20049023 is an apocalyptic number.

20049023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20049023 is an equidigital number, since it uses as much as digits as its factorization.

20049023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20049023 is about 4477.6135384823. The cubic root of 20049023 is about 271.6633621906.

The spelling of 20049023 in words is "twenty million, forty-nine thousand, twenty-three".