20201323097 has 2 divisors, whose sum is σ = 20201323098. Its totient is φ = 20201323096.

The previous prime is 20201323033. The next prime is 20201323117. The reversal of 20201323097 is 79032310202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19440446041 + 760877056 = 139429^2 + 27584^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201323097 - 2⁶ = 20201323033 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201323027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100661548 + 10100661549.

It is an arithmetic number, because the mean of its divisors is an integer number (10100661549).

Almost surely, 2^20201323097 is an apocalyptic number.

It is an amenable number.

20201323097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201323097 is an equidigital number, since it uses as much as digits as its factorization.

20201323097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 20201323097 its reverse (79032310202), we get a palindrome (99233633299).

The spelling of 20201323097 in words is "twenty billion, two hundred one million, three hundred twenty-three thousand, ninety-seven".