11321413231123 has 4 divisors (see below), whose sum is σ = 11321444750440. Its totient is φ = 11321381711808.

The previous prime is 11321413231109. The next prime is 11321413231127. The reversal of 11321413231123 is 32113231412311.

It is a happy number.

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-11321413231123 is a prime.

It is a super-2 number, since 2×11321413231123² (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 = 11321413231091 and 11321413231100.

It is not an unprimeable number, because it can be changed into a prime (11321413231127) 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, 15214590 + ... + 15941347.

It is an arithmetic number, because the mean of its divisors is an integer number (2830361187610).

Almost surely, 2^{11321413231123} is an apocalyptic number.

11321413231123 is a deficient number, since it is larger than the sum of its proper divisors (31519317).

11321413231123 is an equidigital number, since it uses as much as digits as its factorization.

11321413231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31519316.

The product of its digits is 2592, while the sum is 28.

Adding to 11321413231123 its reverse (32113231412311), we get a palindrome (43434644643434).

The spelling of 11321413231123 in words is "eleven trillion, three hundred twenty-one billion, four hundred thirteen million, two hundred thirty-one thousand, one hundred twenty-three".