1223415231 has 8 divisors (see below), whose sum is σ = 1669155840. Its totient is φ = 796642392.

The previous prime is 1223415223. The next prime is 1223415233. The reversal of 1223415231 is 1325143221.

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

It is not a de Polignac number, because 1223415231 - 2³ = 1223415223 is a prime.

It is a super-2 number, since 2×1223415231² = 2993489654885566722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223415233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741791 + ... + 4742048.

It is an arithmetic number, because the mean of its divisors is an integer number (208644480).

Almost surely, 2^1223415231 is an apocalyptic number.

1223415231 is a deficient number, since it is larger than the sum of its proper divisors (445740609).

1223415231 is an equidigital number, since it uses as much as digits as its factorization.

1223415231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483885.

The product of its digits is 1440, while the sum is 24.

The square root of 1223415231 is about 34977.3531159806. The cubic root of 1223415231 is about 1069.5258711108.

Adding to 1223415231 its reverse (1325143221), we get a palindrome (2548558452).

The spelling of 1223415231 in words is "one billion, two hundred twenty-three million, four hundred fifteen thousand, two hundred thirty-one".