1223530123 has 8 divisors (see below), whose sum is σ = 1238292000. Its totient is φ = 1208832768.

The previous prime is 1223530111. The next prime is 1223530129. The reversal of 1223530123 is 3210353221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223530123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223530094 and 1223530103.

It is not an unprimeable number, because it can be changed into a prime (1223530129) 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, 22578 + ... + 54376.

It is an arithmetic number, because the mean of its divisors is an integer number (154786500).

Almost surely, 2^1223530123 is an apocalyptic number.

1223530123 is a deficient number, since it is larger than the sum of its proper divisors (14761877).

1223530123 is a wasteful number, since it uses less digits than its factorization.

1223530123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32261.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1223530123 is about 34978.9954544152. The cubic root of 1223530123 is about 1069.5593501011.

Adding to 1223530123 its reverse (3210353221), we get a palindrome (4433883344).

The spelling of 1223530123 in words is "one billion, two hundred twenty-three million, five hundred thirty thousand, one hundred twenty-three".