223412131 has 2 divisors, whose sum is σ = 223412132. Its totient is φ = 223412130.

The previous prime is 223412117. The next prime is 223412149. The reversal of 223412131 is 131214322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223412131 - 2⁷ = 223412003 is a prime.

It is a super-2 number, since 2×223412131² = 99825960555922322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223412099 and 223412108.

It is not a weakly prime, because it can be changed into another prime (223412531) 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, 111706065 + 111706066.

It is an arithmetic number, because the mean of its divisors is an integer number (111706066).

Almost surely, 2^223412131 is an apocalyptic number.

223412131 is a deficient number, since it is larger than the sum of its proper divisors (1).

223412131 is an equidigital number, since it uses as much as digits as its factorization.

223412131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 223412131 is about 14946.9773198463. The cubic root of 223412131 is about 606.7860442465.

Adding to 223412131 its reverse (131214322), we get a palindrome (354626453).

It can be divided in two parts, 2234 and 12131, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 223412131 in words is "two hundred twenty-three million, four hundred twelve thousand, one hundred thirty-one".