223312351 has 2 divisors, whose sum is σ = 223312352. Its totient is φ = 223312350.

The previous prime is 223312307. The next prime is 223312361. The reversal of 223312351 is 153213322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223312351 - 2⁹ = 223311839 is a prime.

It is a super-2 number, since 2×223312351² = 99736812218294402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223312361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656175 + 111656176.

It is an arithmetic number, because the mean of its divisors is an integer number (111656176).

Almost surely, 2^223312351 is an apocalyptic number.

223312351 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312351 is an equidigital number, since it uses as much as digits as its factorization.

223312351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 223312351 is about 14943.6391484805. The cubic root of 223312351 is about 606.6956968290.

Adding to 223312351 its reverse (153213322), we get a palindrome (376525673).

The spelling of 223312351 in words is "two hundred twenty-three million, three hundred twelve thousand, three hundred fifty-one".