223331131 has 2 divisors, whose sum is σ = 223331132. Its totient is φ = 223331130.

The previous prime is 223331123. The next prime is 223331137. The reversal of 223331131 is 131133322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223331131 - 2³ = 223331123 is a prime.

It is a super-2 number, since 2×223331131² = 99753588147478322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223331099 and 223331108.

It is not a weakly prime, because it can be changed into another prime (223331137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111665565 + 111665566.

It is an arithmetic number, because the mean of its divisors is an integer number (111665566).

Almost surely, 2^223331131 is an apocalyptic number.

223331131 is a deficient number, since it is larger than the sum of its proper divisors (1).

223331131 is an equidigital number, since it uses as much as digits as its factorization.

223331131 is an odious number, because the sum of its binary digits is odd.

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

The square root of 223331131 is about 14944.2674962676. The cubic root of 223331131 is about 606.7127035399.

Adding to 223331131 its reverse (131133322), we get a palindrome (354464453).

The spelling of 223331131 in words is "two hundred twenty-three million, three hundred thirty-one thousand, one hundred thirty-one".