11313113311231 has 4 divisors (see below), whose sum is σ = 11370540282552. Its totient is φ = 11255686339912.

The previous prime is 11313113311189. The next prime is 11313113311259. The reversal of 11313113311231 is 13211331131311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11313113311231 is a prime.

It is a super-2 number, since 2×11313113311231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11313113311196 and 11313113311205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313113311271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28713485365 + ... + 28713485758.

It is an arithmetic number, because the mean of its divisors is an integer number (2842635070638).

Almost surely, 2^{11313113311231} is an apocalyptic number.

11313113311231 is a deficient number, since it is larger than the sum of its proper divisors (57426971321).

11313113311231 is an equidigital number, since it uses as much as digits as its factorization.

11313113311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57426971320.

The product of its digits is 486, while the sum is 25.

Adding to 11313113311231 its reverse (13211331131311), we get a palindrome (24524444442542).

The spelling of 11313113311231 in words is "eleven trillion, three hundred thirteen billion, one hundred thirteen million, three hundred eleven thousand, two hundred thirty-one".