11211112312 has 16 divisors (see below), whose sum is σ = 21228964200. Its totient is φ = 5550055200.

The previous prime is 11211112309. The next prime is 11211112321. The reversal of 11211112312 is 21321111211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6936762 + ... + 6938377.

Almost surely, 2^11211112312 is an apocalyptic number.

It is an amenable number.

11211112312 is a deficient number, since it is larger than the sum of its proper divisors (10017851888).

11211112312 is a wasteful number, since it uses less digits than its factorization.

11211112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875246 (or 13875242 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

Adding to 11211112312 its reverse (21321111211), we get a palindrome (32532223523).

The spelling of 11211112312 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, three hundred twelve".