223311223231 has 4 divisors (see below), whose sum is σ = 223317025000. Its totient is φ = 223305421464.

The previous prime is 223311223229. The next prime is 223311223243. The reversal of 223311223231 is 132322113322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223311223231 - 2¹ = 223311223229 is a prime.

It is a super-2 number, since 2×223311223231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223311223196 and 223311223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223311223631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842761 + ... + 2920258.

It is an arithmetic number, because the mean of its divisors is an integer number (55829256250).

Almost surely, 2^223311223231 is an apocalyptic number.

223311223231 is a deficient number, since it is larger than the sum of its proper divisors (5801769).

223311223231 is an equidigital number, since it uses as much as digits as its factorization.

223311223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801768.

The product of its digits is 2592, while the sum is 25.

Adding to 223311223231 its reverse (132322113322), we get a palindrome (355633336553).

The spelling of 223311223231 in words is "two hundred twenty-three billion, three hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".