1223034231 has 4 divisors (see below), whose sum is σ = 1630712312. Its totient is φ = 815356152.

The previous prime is 1223034221. The next prime is 1223034233. The reversal of 1223034231 is 1324303221.

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

It is not a de Polignac number, because 1223034231 - 2¹¹ = 1223032183 is a prime.

It is a super-2 number, since 2×1223034231² = 2991625460395522722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223034198 and 1223034207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223034233) 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, 203839036 + ... + 203839041.

It is an arithmetic number, because the mean of its divisors is an integer number (407678078).

Almost surely, 2^1223034231 is an apocalyptic number.

1223034231 is a deficient number, since it is larger than the sum of its proper divisors (407678081).

1223034231 is an equidigital number, since it uses as much as digits as its factorization.

1223034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407678080.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223034231 is about 34971.9063106374. The cubic root of 1223034231 is about 1069.4148344940.

Adding to 1223034231 its reverse (1324303221), we get a palindrome (2547337452).

The spelling of 1223034231 in words is "one billion, two hundred twenty-three million, thirty-four thousand, two hundred thirty-one".