13111111123112 has 16 divisors (see below), whose sum is σ = 24610437375360. Its totient is φ = 6548327823024.

The previous prime is 13111111123081. The next prime is 13111111123151. The reversal of 13111111123112 is 21132111111131.

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, 903459608 + ... + 903474119.

It is an arithmetic number, because the mean of its divisors is an integer number (1538152335960).

Almost surely, 2^{13111111123112} is an apocalyptic number.

It is an amenable number.

13111111123112 is a deficient number, since it is larger than the sum of its proper divisors (11499326252248).

13111111123112 is a wasteful number, since it uses less digits than its factorization.

13111111123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806934640 (or 1806934636 counting only the distinct ones).

The product of its digits is 36, while the sum is 20.

Adding to 13111111123112 its reverse (21132111111131), we get a palindrome (34243222234243).

The spelling of 13111111123112 in words is "thirteen trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-three thousand, one hundred twelve".