20601023 has 2 divisors, whose sum is σ = 20601024. Its totient is φ = 20601022.

The previous prime is 20600977. The next prime is 20601029. The reversal of 20601023 is 32010602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20601023 - 2¹⁴ = 20584639 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20600989 and 20601007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20601029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300511 + 10300512.

It is an arithmetic number, because the mean of its divisors is an integer number (10300512).

Almost surely, 2^20601023 is an apocalyptic number.

20601023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601023 is an equidigital number, since it uses as much as digits as its factorization.

20601023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20601023 is about 4538.8349826800. The cubic root of 20601023 is about 274.1340163486.

Adding to 20601023 its reverse (32010602), we get a palindrome (52611625).

The spelling of 20601023 in words is "twenty million, six hundred one thousand, twenty-three".