23012122232161 has 2 divisors, whose sum is σ = 23012122232162. Its totient is φ = 23012122232160.

The previous prime is 23012122232153. The next prime is 23012122232257. The reversal of 23012122232161 is 16123222121032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22800481750225 + 211640481936 = 4774985^2 + 460044^2 .

It is a cyclic number.

It is not a de Polignac number, because 23012122232161 - 2³ = 23012122232153 is a prime.

It is not a weakly prime, because it can be changed into another prime (23012122232111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506061116080 + 11506061116081.

It is an arithmetic number, because the mean of its divisors is an integer number (11506061116081).

Almost surely, 2^{23012122232161} is an apocalyptic number.

It is an amenable number.

23012122232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012122232161 is an equidigital number, since it uses as much as digits as its factorization.

23012122232161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 23012122232161 its reverse (16123222121032), we get a palindrome (39135344353193).

The spelling of 23012122232161 in words is "twenty-three trillion, twelve billion, one hundred twenty-two million, two hundred thirty-two thousand, one hundred sixty-one".