11311113112 has 32 divisors (see below), whose sum is σ = 22850427600. Its totient is φ = 5218072704.

The previous prime is 11311113097. The next prime is 11311113179. The reversal of 11311113112 is 21131111311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208339 + ... + 256957.

Almost surely, 2^11311113112 is an apocalyptic number.

It is an amenable number.

11311113112 is an abundant number, since it is smaller than the sum of its proper divisors (11539314488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311113112 is a wasteful number, since it uses less digits than its factorization.

11311113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50875 (or 50871 counting only the distinct ones).

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

Adding to 11311113112 its reverse (21131111311), we get a palindrome (32442224423).

It can be divided in two parts, 1131111311 and 2, that multiplied together give a palindrome (2262222622).

The spelling of 11311113112 in words is "eleven billion, three hundred eleven million, one hundred thirteen thousand, one hundred twelve".