1223311904 has 24 divisors (see below), whose sum is σ = 2420510400. Its totient is φ = 608579136.

The previous prime is 1223311883. The next prime is 1223311913. The reversal of 1223311904 is 4091133221.

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, 89684 + ... + 102419.

It is an arithmetic number, because the mean of its divisors is an integer number (100854600).

Almost surely, 2^1223311904 is an apocalyptic number.

It is an amenable number.

1223311904 is a deficient number, since it is larger than the sum of its proper divisors (1197198496).

1223311904 is a wasteful number, since it uses less digits than its factorization.

1223311904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192312 (or 192304 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1223311904 is about 34975.8760290575. The cubic root of 1223311904 is about 1069.4957603171.

The spelling of 1223311904 in words is "one billion, two hundred twenty-three million, three hundred eleven thousand, nine hundred four".