11312311223113 has 4 divisors (see below), whose sum is σ = 11318163429508. Its totient is φ = 11306459016720.

The previous prime is 11312311223077. The next prime is 11312311223207. The reversal of 11312311223113 is 31132211321311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2947704404544 + 8364606818569 = 1716888^2 + 2892163^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312311223113 - 2¹³ = 11312311214921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312311223413) 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, 2926100298 + ... + 2926104163.

It is an arithmetic number, because the mean of its divisors is an integer number (2829540857377).

Almost surely, 2^{11312311223113} is an apocalyptic number.

It is an amenable number.

11312311223113 is a deficient number, since it is larger than the sum of its proper divisors (5852206395).

11312311223113 is an equidigital number, since it uses as much as digits as its factorization.

11312311223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852206394.

The product of its digits is 648, while the sum is 25.

Adding to 11312311223113 its reverse (31132211321311), we get a palindrome (42444522544424).

The spelling of 11312311223113 in words is "eleven trillion, three hundred twelve billion, three hundred eleven million, two hundred twenty-three thousand, one hundred thirteen".