223011260161 has 2 divisors, whose sum is σ = 223011260162. Its totient is φ = 223011260160.

The previous prime is 223011260159. The next prime is 223011260237. The reversal of 223011260161 is 161062110322.

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., 222241530625 + 769729536 = 471425^2 + 27744^2 .

It is a cyclic number.

It is not a de Polignac number, because 223011260161 - 2¹ = 223011260159 is a prime.

Together with 223011260159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (223011200161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111505630080 + 111505630081.

It is an arithmetic number, because the mean of its divisors is an integer number (111505630081).

Almost surely, 2^223011260161 is an apocalyptic number.

It is an amenable number.

223011260161 is a deficient number, since it is larger than the sum of its proper divisors (1).

223011260161 is an equidigital number, since it uses as much as digits as its factorization.

223011260161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 223011260161 its reverse (161062110322), we get a palindrome (384073370483).

The spelling of 223011260161 in words is "two hundred twenty-three billion, eleven million, two hundred sixty thousand, one hundred sixty-one".