1311334312 has 16 divisors (see below), whose sum is σ = 2467828800. Its totient is φ = 653246640.

The previous prime is 1311334307. The next prime is 1311334313. The reversal of 1311334312 is 2134331131.

It is not an unprimeable number, because it can be changed into a prime (1311334313) 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, 300262 + ... + 304597.

It is an arithmetic number, because the mean of its divisors is an integer number (154239300).

Almost surely, 2^1311334312 is an apocalyptic number.

It is an amenable number.

1311334312 is a deficient number, since it is larger than the sum of its proper divisors (1156494488).

1311334312 is a wasteful number, since it uses less digits than its factorization.

1311334312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605136 (or 605132 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 1311334312 is about 36212.3502689345. The cubic root of 1311334312 is about 1094.5555522721. Note that the first 5 decimals are identical.

Adding to 1311334312 its reverse (2134331131), we get a palindrome (3445665443).

The spelling of 1311334312 in words is "one billion, three hundred eleven million, three hundred thirty-four thousand, three hundred twelve".