1223110231 has 8 divisors (see below), whose sum is σ = 1398220704. Its totient is φ = 1048094880.

The previous prime is 1223110223. The next prime is 1223110243. The reversal of 1223110231 is 1320113221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223110231 - 2³ = 1223110223 is a prime.

It is a super-2 number, since 2×1223110231² = 2991997274353746722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220110231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6321 + ... + 49861.

It is an arithmetic number, because the mean of its divisors is an integer number (174777588).

Almost surely, 2^1223110231 is an apocalyptic number.

1223110231 is a deficient number, since it is larger than the sum of its proper divisors (175110473).

1223110231 is an equidigital number, since it uses as much as digits as its factorization.

1223110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47561.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1223110231 is about 34972.9928802212. The cubic root of 1223110231 is about 1069.4369853714.

Adding to 1223110231 its reverse (1320113221), we get a palindrome (2543223452).

The spelling of 1223110231 in words is "one billion, two hundred twenty-three million, one hundred ten thousand, two hundred thirty-one".