13111120122112 has 18 divisors (see below), whose sum is σ = 26171024931758. Its totient is φ = 6555560060928.

The previous prime is 13111120122073. The next prime is 13111120122131. The reversal of 13111120122112 is 21122102111131.

It can be written as a sum of positive squares in only one way, i.e., 13107991286016 + 3128836096 = 3620496^2 + 55936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13111120122112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25607656233 + ... + 25607656744.

Almost surely, 2^{13111120122112} is an apocalyptic number.

It is an amenable number.

13111120122112 is a deficient number, since it is larger than the sum of its proper divisors (13059904809646).

13111120122112 is an frugal number, since it uses more digits than its factorization.

13111120122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51215312993 (or 51215312979 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 13111120122112 its reverse (21122102111131), we get a palindrome (34233222233243).

The spelling of 13111120122112 in words is "thirteen trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twelve".