223313131 has 4 divisors (see below), whose sum is σ = 226974064. Its totient is φ = 219652200.

The previous prime is 223313113. The next prime is 223313143. The reversal of 223313131 is 131313322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223313131 - 2⁹ = 223312619 is a prime.

It is a super-2 number, since 2×223313131² = 99737508954046322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223313099 and 223313108.

It is not an unprimeable number, because it can be changed into a prime (223313161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1830375 + ... + 1830496.

It is an arithmetic number, because the mean of its divisors is an integer number (56743516).

Almost surely, 2^223313131 is an apocalyptic number.

223313131 is a deficient number, since it is larger than the sum of its proper divisors (3660933).

223313131 is an equidigital number, since it uses as much as digits as its factorization.

223313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660932.

The product of its digits is 324, while the sum is 19.

The square root of 223313131 is about 14943.6652465183. The cubic root of 223313131 is about 606.6964031970.

Adding to 223313131 its reverse (131313322), we get a palindrome (354626453).

The spelling of 223313131 in words is "two hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-one".