20023123320601 has 2 divisors, whose sum is σ = 20023123320602. Its totient is φ = 20023123320600.

The previous prime is 20023123320509. The next prime is 20023123320619. The reversal of 20023123320601 is 10602332132002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18848630933001 + 1174492387600 = 4341501^2 + 1083740^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023123320601 - 2³⁵ = 19988763582233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023123324601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011561660300 + 10011561660301.

It is an arithmetic number, because the mean of its divisors is an integer number (10011561660301).

Almost surely, 2^{20023123320601} is an apocalyptic number.

It is an amenable number.

20023123320601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023123320601 is an equidigital number, since it uses as much as digits as its factorization.

20023123320601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20023123320601 its reverse (10602332132002), we get a palindrome (30625455452603).

The spelling of 20023123320601 in words is "twenty trillion, twenty-three billion, one hundred twenty-three million, three hundred twenty thousand, six hundred one".