11111323312 has 10 divisors (see below), whose sum is σ = 21528188948. Its totient is φ = 5555661648.

The previous prime is 11111323309. The next prime is 11111323343. The reversal of 11111323312 is 21332311111.

It is a self number, because there is not a number n which added to its sum of digits gives 11111323312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347228838 + ... + 347228869.

Almost surely, 2^11111323312 is an apocalyptic number.

It is an amenable number.

11111323312 is a deficient number, since it is larger than the sum of its proper divisors (10416865636).

11111323312 is an equidigital number, since it uses as much as digits as its factorization.

11111323312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694457715 (or 694457709 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 11111323312 its reverse (21332311111), we get a palindrome (32443634423).

The spelling of 11111323312 in words is "eleven billion, one hundred eleven million, three hundred twenty-three thousand, three hundred twelve".