11312241321 has 4 divisors (see below), whose sum is σ = 15082988432. Its totient is φ = 7541494212.

The previous prime is 11312241253. The next prime is 11312241331. The reversal of 11312241321 is 12314221311.

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 not a de Polignac number, because 11312241321 - 2⁹ = 11312240809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312241331) 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, 1885373551 + ... + 1885373556.

It is an arithmetic number, because the mean of its divisors is an integer number (3770747108).

Almost surely, 2^11312241321 is an apocalyptic number.

It is an amenable number.

11312241321 is a deficient number, since it is larger than the sum of its proper divisors (3770747111).

11312241321 is an equidigital number, since it uses as much as digits as its factorization.

11312241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770747110.

The product of its digits is 288, while the sum is 21.

Adding to 11312241321 its reverse (12314221311), we get a palindrome (23626462632).

The spelling of 11312241321 in words is "eleven billion, three hundred twelve million, two hundred forty-one thousand, three hundred twenty-one".