1213311304 has 16 divisors (see below), whose sum is σ = 2275344000. Its totient is φ = 606552912.

The previous prime is 1213311293. The next prime is 1213311317. The reversal of 1213311304 is 4031133121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65349 + ... + 81835.

It is an arithmetic number, because the mean of its divisors is an integer number (142209000).

Almost surely, 2^1213311304 is an apocalyptic number.

It is an amenable number.

1213311304 is a deficient number, since it is larger than the sum of its proper divisors (1062032696).

1213311304 is a wasteful number, since it uses less digits than its factorization.

1213311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25692 (or 25688 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1213311304 is about 34832.6183913871. The cubic root of 1213311304 is about 1066.5733990499.

Adding to 1213311304 its reverse (4031133121), we get a palindrome (5244444425).

The spelling of 1213311304 in words is "one billion, two hundred thirteen million, three hundred eleven thousand, three hundred four".