223315121 has 2 divisors, whose sum is σ = 223315122. Its totient is φ = 223315120.

The previous prime is 223315061. The next prime is 223315123. The reversal of 223315121 is 121513322.

223315121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198951025 + 24364096 = 14105^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 223315121 - 2¹⁰ = 223314097 is a prime.

Together with 223315123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 223315093 and 223315102.

It is not a weakly prime, because it can be changed into another prime (223315123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111657560 + 111657561.

It is an arithmetic number, because the mean of its divisors is an integer number (111657561).

Almost surely, 2^223315121 is an apocalyptic number.

It is an amenable number.

223315121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223315121 is an equidigital number, since it uses as much as digits as its factorization.

223315121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 223315121 is about 14943.7318297673. The cubic root of 223315121 is about 606.6982053335.

Adding to 223315121 its reverse (121513322), we get a palindrome (344828443).

The spelling of 223315121 in words is "two hundred twenty-three million, three hundred fifteen thousand, one hundred twenty-one".