223303121 has 2 divisors, whose sum is σ = 223303122. Its totient is φ = 223303120.

The previous prime is 223303099. The next prime is 223303147. The reversal of 223303121 is 121303322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170668096 + 52635025 = 13064^2 + 7255^2 .

It is a cyclic number.

It is not a de Polignac number, because 223303121 - 2¹⁸ = 223040977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223303121.

It is not a weakly prime, because it can be changed into another prime (228303121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111651560 + 111651561.

It is an arithmetic number, because the mean of its divisors is an integer number (111651561).

Almost surely, 2^223303121 is an apocalyptic number.

It is an amenable number.

223303121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223303121 is an equidigital number, since it uses as much as digits as its factorization.

223303121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223303121 is about 14943.3303182390. The cubic root of 223303121 is about 606.6873380161.

Adding to 223303121 its reverse (121303322), we get a palindrome (344606443).

The spelling of 223303121 in words is "two hundred twenty-three million, three hundred three thousand, one hundred twenty-one".