11111003321311 has 4 divisors (see below), whose sum is σ = 11369398747432. Its totient is φ = 10852607895192.

The previous prime is 11111003321293. The next prime is 11111003321317. The reversal of 11111003321311 is 11312330011111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111003321311 - 2¹³ = 11111003313119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111003321317) 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, 129197712996 + ... + 129197713081.

It is an arithmetic number, because the mean of its divisors is an integer number (2842349686858).

Almost surely, 2^{11111003321311} is an apocalyptic number.

11111003321311 is a deficient number, since it is larger than the sum of its proper divisors (258395426121).

11111003321311 is an equidigital number, since it uses as much as digits as its factorization.

11111003321311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258395426120.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11111003321311 its reverse (11312330011111), we get a palindrome (22423333332422).

The spelling of 11111003321311 in words is "eleven trillion, one hundred eleven billion, three million, three hundred twenty-one thousand, three hundred eleven".