1213330304 has 32 divisors (see below), whose sum is σ = 2500540200. Its totient is φ = 585743872.

The previous prime is 1213330303. The next prime is 1213330351. The reversal of 1213330304 is 4030333121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213330303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159722 + ... + 167145.

Almost surely, 2^1213330304 is an apocalyptic number.

It is an amenable number.

1213330304 is an abundant number, since it is smaller than the sum of its proper divisors (1287209896).

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

1213330304 is an equidigital number, since it uses as much as digits as its factorization.

1213330304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326910 (or 326898 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1213330304 is about 34832.8911231899. The cubic root of 1213330304 is about 1066.5789664007.

Adding to 1213330304 its reverse (4030333121), we get a palindrome (5243663425).

The spelling of 1213330304 in words is "one billion, two hundred thirteen million, three hundred thirty thousand, three hundred four".