311304124543513 has 8 divisors (see below), whose sum is σ = 329637517739208. Its totient is φ = 292973107555584.

The previous prime is 311304124543493. The next prime is 311304124543589. The reversal of 311304124543513 is 315345421403113.

It can be written as a sum of positive squares in 4 ways, for example, as 75767484620304 + 235536639923209 = 8704452^2 + 15347203^2 .

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

It is not a de Polignac number, because 311304124543513 - 2¹⁷ = 311304124412441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311304124543813) 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, 593782206 + ... + 594306247.

It is an arithmetic number, because the mean of its divisors is an integer number (41204689717401).

Almost surely, 2^{311304124543513} is an apocalyptic number.

It is an amenable number.

311304124543513 is a deficient number, since it is larger than the sum of its proper divisors (18333393195695).

311304124543513 is a wasteful number, since it uses less digits than its factorization.

311304124543513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188103883.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 311304124543513 its reverse (315345421403113), we get a palindrome (626649545946626).

The spelling of 311304124543513 in words is "three hundred eleven trillion, three hundred four billion, one hundred twenty-four million, five hundred forty-three thousand, five hundred thirteen".