1311040343413 has 8 divisors (see below), whose sum is σ = 1332212634648. Its totient is φ = 1290024305664.

The previous prime is 1311040343399. The next prime is 1311040343423. The reversal of 1311040343413 is 3143430401131.

It can be written as a sum of positive squares in 4 ways, for example, as 440480433969 + 870559909444 = 663687^2 + 933038^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311040343413 is a prime.

It is a super-5 number, since 5×1311040343413⁵ (a number of 62 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311040343423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39046456 + ... + 39080017.

It is an arithmetic number, because the mean of its divisors is an integer number (166526579331).

Almost surely, 2^{1311040343413} is an apocalyptic number.

It is an amenable number.

1311040343413 is a deficient number, since it is larger than the sum of its proper divisors (21172291235).

1311040343413 is an equidigital number, since it uses as much as digits as its factorization.

1311040343413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78126743.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1311040343413 its reverse (3143430401131), we get a palindrome (4454470744544).

The spelling of 1311040343413 in words is "one trillion, three hundred eleven billion, forty million, three hundred forty-three thousand, four hundred thirteen".