223142312 has 32 divisors (see below), whose sum is σ = 427372200. Its totient is φ = 109200384.

The previous prime is 223142303. The next prime is 223142317. The reversal of 223142312 is 213241322.

It can be written as a sum of positive squares in 4 ways, for example, as 209496676 + 13645636 = 14474^2 + 3694^2 .

It is a super-3 number, since 3×223142312³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223142317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78614 + ... + 81402.

Almost surely, 2^223142312 is an apocalyptic number.

It is an amenable number.

223142312 is a deficient number, since it is larger than the sum of its proper divisors (204229888).

223142312 is a wasteful number, since it uses less digits than its factorization.

223142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 3001 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 223142312 is about 14937.9487212937. The cubic root of 223142312 is about 606.5416702319.

Adding to 223142312 its reverse (213241322), we get a palindrome (436383634).

The spelling of 223142312 in words is "two hundred twenty-three million, one hundred forty-two thousand, three hundred twelve".