23102220161 has 2 divisors, whose sum is σ = 23102220162. Its totient is φ = 23102220160.

The previous prime is 23102219999. The next prime is 23102220263. The reversal of 23102220161 is 16102220132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12730834561 + 10371385600 = 112831^2 + 101840^2 .

It is a cyclic number.

It is not a de Polignac number, because 23102220161 - 2¹⁸ = 23101958017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23102220461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551110080 + 11551110081.

It is an arithmetic number, because the mean of its divisors is an integer number (11551110081).

Almost surely, 2^23102220161 is an apocalyptic number.

It is an amenable number.

23102220161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23102220161 is an equidigital number, since it uses as much as digits as its factorization.

23102220161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23102220161 its reverse (16102220132), we get a palindrome (39204440293).

The spelling of 23102220161 in words is "twenty-three billion, one hundred two million, two hundred twenty thousand, one hundred sixty-one".