223312361 has 2 divisors, whose sum is σ = 223312362. Its totient is φ = 223312360.

The previous prime is 223312351. The next prime is 223312393. The reversal of 223312361 is 163213322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130074025 + 93238336 = 11405^2 + 9656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223312361 is a prime.

It is not a weakly prime, because it can be changed into another prime (223312351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656180 + 111656181.

It is an arithmetic number, because the mean of its divisors is an integer number (111656181).

Almost surely, 2^223312361 is an apocalyptic number.

It is an amenable number.

223312361 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312361 is an equidigital number, since it uses as much as digits as its factorization.

223312361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 223312361 is about 14943.6394830711. The cubic root of 223312361 is about 606.6957058850.

Adding to 223312361 its reverse (163213322), we get a palindrome (386525683).

The spelling of 223312361 in words is "two hundred twenty-three million, three hundred twelve thousand, three hundred sixty-one".