1223030312 has 16 divisors (see below), whose sum is σ = 2620779360. Its totient is φ = 524155824.

The previous prime is 1223030299. The next prime is 1223030327. The reversal of 1223030312 is 2130303221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10919858 + ... + 10919969.

It is an arithmetic number, because the mean of its divisors is an integer number (163798710).

Almost surely, 2^1223030312 is an apocalyptic number.

It is an amenable number.

1223030312 is an abundant number, since it is smaller than the sum of its proper divisors (1397749048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223030312 is a wasteful number, since it uses less digits than its factorization.

1223030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21839840 (or 21839836 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1223030312 is about 34971.8502799037. The cubic root of 1223030312 is about 1069.4136922416.

Adding to 1223030312 its reverse (2130303221), we get a palindrome (3353333533).

The spelling of 1223030312 in words is "one billion, two hundred twenty-three million, thirty thousand, three hundred twelve".