1311343331146 has 8 divisors (see below), whose sum is σ = 1980216440100. Its totient is φ = 651271184448.

The previous prime is 1311343331117. The next prime is 1311343331183. The reversal of 1311343331146 is 6411333431131.

It can be written as a sum of positive squares in 2 ways, for example, as 981337890625 + 330005440521 = 990625^2 + 574461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200240191 + ... + 2200240786.

Almost surely, 2^{1311343331146} is an apocalyptic number.

1311343331146 is a deficient number, since it is larger than the sum of its proper divisors (668873108954).

1311343331146 is a wasteful number, since it uses less digits than its factorization.

1311343331146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400481128.

The product of its digits is 23328, while the sum is 34.

Adding to 1311343331146 its reverse (6411333431131), we get a palindrome (7722676762277).

The spelling of 1311343331146 in words is "one trillion, three hundred eleven billion, three hundred forty-three million, three hundred thirty-one thousand, one hundred forty-six".