11231321113 has 4 divisors (see below), whose sum is σ = 11470285440. Its totient is φ = 10992356788.

The previous prime is 11231321093. The next prime is 11231321141. The reversal of 11231321113 is 31112313211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11231321113 - 2²⁵ = 11197766681 is a prime.

It is a super-3 number, since 3×11231321113³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231721113) 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, 119482093 + ... + 119482186.

It is an arithmetic number, because the mean of its divisors is an integer number (2867571360).

Almost surely, 2^11231321113 is an apocalyptic number.

It is an amenable number.

11231321113 is a deficient number, since it is larger than the sum of its proper divisors (238964327).

11231321113 is an equidigital number, since it uses as much as digits as its factorization.

11231321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238964326.

The product of its digits is 108, while the sum is 19.

Adding to 11231321113 its reverse (31112313211), we get a palindrome (42343634324).

The spelling of 11231321113 in words is "eleven billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred thirteen".