1331311304 has 64 divisors (see below), whose sum is σ = 2701036800. Its totient is φ = 613134144.

The previous prime is 1331311301. The next prime is 1331311307. The reversal of 1331311304 is 4031131331.

It is an interprime number because it is at equal distance from previous prime (1331311301) and next prime (1331311307).

It is not an unprimeable number, because it can be changed into a prime (1331311301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267699 + ... + 2268285.

It is an arithmetic number, because the mean of its divisors is an integer number (42203700).

Almost surely, 2^1331311304 is an apocalyptic number.

It is an amenable number.

1331311304 is an abundant number, since it is smaller than the sum of its proper divisors (1369725496).

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

1331311304 is a wasteful number, since it uses less digits than its factorization.

1331311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1331311304 is about 36487.1388848180. The cubic root of 1331311304 is about 1100.0857519926.

Adding to 1331311304 its reverse (4031131331), we get a palindrome (5362442635).

The spelling of 1331311304 in words is "one billion, three hundred thirty-one million, three hundred eleven thousand, three hundred four".