11323111321031 has 4 divisors (see below), whose sum is σ = 11326572990864. Its totient is φ = 11319649651200.

The previous prime is 11323111321013. The next prime is 11323111321057. The reversal of 11323111321031 is 13012311132311.

11323111321031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11323111321031 is a prime.

It is a super-2 number, since 2×11323111321031² (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 = 11323111320988 and 11323111321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323111321061) 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, 1730830010 + ... + 1730836551.

It is an arithmetic number, because the mean of its divisors is an integer number (2831643247716).

Almost surely, 2^{11323111321031} is an apocalyptic number.

11323111321031 is a deficient number, since it is larger than the sum of its proper divisors (3461669833).

11323111321031 is an equidigital number, since it uses as much as digits as its factorization.

11323111321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461669832.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 11323111321031 its reverse (13012311132311), we get a palindrome (24335422453342).

The spelling of 11323111321031 in words is "eleven trillion, three hundred twenty-three billion, one hundred eleven million, three hundred twenty-one thousand, thirty-one".