223232321173 has 2 divisors, whose sum is σ = 223232321174. Its totient is φ = 223232321172.

The previous prime is 223232321161. The next prime is 223232321183. The reversal of 223232321173 is 371123232322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145757495524 + 77474825649 = 381782^2 + 278343^2 .

It is a cyclic number.

It is not a de Polignac number, because 223232321173 - 2⁵ = 223232321141 is a prime.

It is a super-3 number, since 3×223232321173³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223232321183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111616160586 + 111616160587.

It is an arithmetic number, because the mean of its divisors is an integer number (111616160587).

Almost surely, 2^223232321173 is an apocalyptic number.

It is an amenable number.

223232321173 is a deficient number, since it is larger than the sum of its proper divisors (1).

223232321173 is an equidigital number, since it uses as much as digits as its factorization.

223232321173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 31.

Adding to 223232321173 its reverse (371123232322), we get a palindrome (594355553495).

The spelling of 223232321173 in words is "two hundred twenty-three billion, two hundred thirty-two million, three hundred twenty-one thousand, one hundred seventy-three".