1223504023 has 16 divisors (see below), whose sum is σ = 1422893056. Its totient is φ = 1030307040.

The previous prime is 1223504011. The next prime is 1223504039. The reversal of 1223504023 is 3204053221.

It is a de Polignac number, because none of the positive numbers 2^k-1223504023 is a prime.

It is a super-3 number, since 3×1223504023³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223503985 and 1223504003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223504923) 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, 709240 + ... + 710962.

It is an arithmetic number, because the mean of its divisors is an integer number (88930816).

Almost surely, 2^1223504023 is an apocalyptic number.

1223504023 is a deficient number, since it is larger than the sum of its proper divisors (199389033).

1223504023 is a wasteful number, since it uses less digits than its factorization.

1223504023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1223504023 is about 34978.6223713856. The cubic root of 1223504023 is about 1069.5517448674.

Adding to 1223504023 its reverse (3204053221), we get a palindrome (4427557244).

The spelling of 1223504023 in words is "one billion, two hundred twenty-three million, five hundred four thousand, twenty-three".