223223111031 has 4 divisors (see below), whose sum is σ = 297630814712. Its totient is φ = 148815407352.

The previous prime is 223223111017. The next prime is 223223111039. The reversal of 223223111031 is 130111322322.

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

It is not a de Polignac number, because 223223111031 - 2¹⁵ = 223223078263 is a prime.

It is a super-3 number, since 3×223223111031³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223223110989 and 223223111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223223111039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37203851836 + ... + 37203851841.

It is an arithmetic number, because the mean of its divisors is an integer number (74407703678).

Almost surely, 2^223223111031 is an apocalyptic number.

223223111031 is a deficient number, since it is larger than the sum of its proper divisors (74407703681).

223223111031 is an equidigital number, since it uses as much as digits as its factorization.

223223111031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74407703680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 223223111031 its reverse (130111322322), we get a palindrome (353334433353).

The spelling of 223223111031 in words is "two hundred twenty-three billion, two hundred twenty-three million, one hundred eleven thousand, thirty-one".