1311000031304 has 16 divisors (see below), whose sum is σ = 2463599731500. Its totient is φ = 654040102912.

The previous prime is 1311000031301. The next prime is 1311000031391. The reversal of 1311000031304 is 4031300001131.

It can be written as a sum of positive squares in 2 ways, for example, as 1199677708804 + 111322322500 = 1095298^2 + 333650^2 .

It is not an unprimeable number, because it can be changed into a prime (1311000031301) 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, 182485277 + ... + 182492460.

Almost surely, 2^{1311000031304} is an apocalyptic number.

It is an amenable number.

1311000031304 is a deficient number, since it is larger than the sum of its proper divisors (1152599700196).

1311000031304 is a wasteful number, since it uses less digits than its factorization.

1311000031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364978192 (or 364978188 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1311000031304 its reverse (4031300001131), we get a palindrome (5342300032435).

The spelling of 1311000031304 in words is "one trillion, three hundred eleven billion, thirty-one thousand, three hundred four".