11110111331213 has 4 divisors (see below), whose sum is σ = 11110118816928. Its totient is φ = 11110103845500.

The previous prime is 11110111331197. The next prime is 11110111331269. The reversal of 11110111331213 is 31213311101111.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11110111331213 - 2⁴ = 11110111331197 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 (11110111361213) 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, 682481 + ... + 4762982.

It is an arithmetic number, because the mean of its divisors is an integer number (2777529704232).

Almost surely, 2^{11110111331213} is an apocalyptic number.

It is an amenable number.

11110111331213 is a deficient number, since it is larger than the sum of its proper divisors (7485715).

11110111331213 is an equidigital number, since it uses as much as digits as its factorization.

11110111331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485714.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 11110111331213 its reverse (31213311101111), we get a palindrome (42323422432324).

The spelling of 11110111331213 in words is "eleven trillion, one hundred ten billion, one hundred eleven million, three hundred thirty-one thousand, two hundred thirteen".