1223123313 has 8 divisors (see below), whose sum is σ = 1646072928. Its totient is φ = 807794624.

The previous prime is 1223123303. The next prime is 1223123333. The reversal of 1223123313 is 3133213221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223123313 - 2⁵ = 1223123281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223123313.

It is not an unprimeable number, because it can be changed into a prime (1223123303) 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, 1904856 + ... + 1905497.

It is an arithmetic number, because the mean of its divisors is an integer number (205759116).

Almost surely, 2^1223123313 is an apocalyptic number.

It is an amenable number.

1223123313 is a deficient number, since it is larger than the sum of its proper divisors (422949615).

1223123313 is a wasteful number, since it uses less digits than its factorization.

1223123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810463.

The product of its digits is 648, while the sum is 21.

The square root of 1223123313 is about 34973.1799097537. The cubic root of 1223123313 is about 1069.4407981443.

Adding to 1223123313 its reverse (3133213221), we get a palindrome (4356336534).

The spelling of 1223123313 in words is "one billion, two hundred twenty-three million, one hundred twenty-three thousand, three hundred thirteen".