11312113111 has 4 divisors (see below), whose sum is σ = 12182275672. Its totient is φ = 10441950552.

The previous prime is 11312113091. The next prime is 11312113117. The reversal of 11312113111 is 11131121311.

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 11312113111 - 2¹⁵ = 11312080343 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 (11312113117) 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, 435081261 + ... + 435081286.

It is an arithmetic number, because the mean of its divisors is an integer number (3045568918).

Almost surely, 2^11312113111 is an apocalyptic number.

11312113111 is a deficient number, since it is larger than the sum of its proper divisors (870162561).

11312113111 is an equidigital number, since it uses as much as digits as its factorization.

11312113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870162560.

The product of its digits is 18, while the sum is 16.

Adding to 11312113111 its reverse (11131121311), we get a palindrome (22443234422).

The spelling of 11312113111 in words is "eleven billion, three hundred twelve million, one hundred thirteen thousand, one hundred eleven".