311312113230013 has 8 divisors (see below), whose sum is σ = 355786556375232. Its totient is φ = 266837991112896.

The previous prime is 311312113230011. The next prime is 311312113230073. The reversal of 311312113230013 is 310032311213113.

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

It is not a de Polignac number, because 311312113230013 - 2¹ = 311312113230011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311312113230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311312113230011) 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, 78175420 + ... + 82061077.

It is an arithmetic number, because the mean of its divisors is an integer number (44473319546904).

Almost surely, 2^{311312113230013} is an apocalyptic number.

It is an amenable number.

311312113230013 is a deficient number, since it is larger than the sum of its proper divisors (44474443145219).

311312113230013 is a wasteful number, since it uses less digits than its factorization.

311312113230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160514051.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311312113230013 its reverse (310032311213113), we get a palindrome (621344424443126).

The spelling of 311312113230013 in words is "three hundred eleven trillion, three hundred twelve billion, one hundred thirteen million, two hundred thirty thousand, thirteen".