223131316 has 6 divisors (see below), whose sum is σ = 390479810. Its totient is φ = 111565656.

The previous prime is 223131287. The next prime is 223131317. The reversal of 223131316 is 613131322.

It can be written as a sum of positive squares in only one way, i.e., 127012900 + 96118416 = 11270^2 + 9804^2 .

It is a super-3 number, since 3×223131316³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223131317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27891411 + ... + 27891418.

Almost surely, 2^223131316 is an apocalyptic number.

It is an amenable number.

223131316 is a deficient number, since it is larger than the sum of its proper divisors (167348494).

223131316 is a wasteful number, since it uses less digits than its factorization.

223131316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55782833 (or 55782831 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 223131316 is about 14937.5806608701. The cubic root of 223131316 is about 606.5317070209.

Adding to 223131316 its reverse (613131322), we get a palindrome (836262638).

The spelling of 223131316 in words is "two hundred twenty-three million, one hundred thirty-one thousand, three hundred sixteen".