1223031304 has 32 divisors (see below), whose sum is σ = 2505399840. Its totient is φ = 555091200.

The previous prime is 1223031259. The next prime is 1223031343. The reversal of 1223031304 is 4031303221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50752 + ... + 70864.

It is an arithmetic number, because the mean of its divisors is an integer number (78293745).

Almost surely, 2^1223031304 is an apocalyptic number.

It is an amenable number.

1223031304 is an abundant number, since it is smaller than the sum of its proper divisors (1282368536).

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

1223031304 is a wasteful number, since it uses less digits than its factorization.

1223031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20821 (or 20817 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223031304 is about 34971.8644627363. The cubic root of 1223031304 is about 1069.4139813754.

Adding to 1223031304 its reverse (4031303221), we get a palindrome (5254334525).

It can be divided in two parts, 12230 and 31304, that added together give a palindrome (43534).

The spelling of 1223031304 in words is "one billion, two hundred twenty-three million, thirty-one thousand, three hundred four".