1223243403 has 16 divisors (see below), whose sum is σ = 1726475520. Its totient is φ = 769061664.

The previous prime is 1223243387. The next prime is 1223243423. The reversal of 1223243403 is 3043423221.

It is not a de Polignac number, because 1223243403 - 2⁴ = 1223243387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223243423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159751 + ... + 167232.

It is an arithmetic number, because the mean of its divisors is an integer number (107904720).

Almost surely, 2^1223243403 is an apocalyptic number.

1223243403 is a deficient number, since it is larger than the sum of its proper divisors (503232117).

1223243403 is a wasteful number, since it uses less digits than its factorization.

1223243403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327058.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1223243403 is about 34974.8967546725. The cubic root of 1223243403 is about 1069.4757973253.

Adding to 1223243403 its reverse (3043423221), we get a palindrome (4266666624).

The spelling of 1223243403 in words is "one billion, two hundred twenty-three million, two hundred forty-three thousand, four hundred three".