11121344311 has 16 divisors (see below), whose sum is σ = 13872741120. Its totient is φ = 8661502080.

The previous prime is 11121344293. The next prime is 11121344329. The reversal of 11121344311 is 11344312111.

It is an interprime number because it is at equal distance from previous prime (11121344293) and next prime (11121344329).

It is not a de Polignac number, because 11121344311 - 2¹⁵ = 11121311543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121344111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116655 + ... + 189343.

It is an arithmetic number, because the mean of its divisors is an integer number (867046320).

Almost surely, 2^11121344311 is an apocalyptic number.

11121344311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121344311 is a deficient number, since it is larger than the sum of its proper divisors (2751396809).

11121344311 is a wasteful number, since it uses less digits than its factorization.

11121344311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74694.

The product of its digits is 288, while the sum is 22.

Adding to 11121344311 its reverse (11344312111), we get a palindrome (22465656422).

The spelling of 11121344311 in words is "eleven billion, one hundred twenty-one million, three hundred forty-four thousand, three hundred eleven".