13112103112 has 8 divisors (see below), whose sum is σ = 24585193350. Its totient is φ = 6556051552.

The previous prime is 13112103079. The next prime is 13112103119. The reversal of 13112103112 is 21130121131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13104296676 + 7806436 = 114474^2 + 2794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13112103119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 819506437 + ... + 819506452.

Almost surely, 2^13112103112 is an apocalyptic number.

It is an amenable number.

13112103112 is a deficient number, since it is larger than the sum of its proper divisors (11473090238).

13112103112 is a wasteful number, since it uses less digits than its factorization.

13112103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639012895 (or 1639012891 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13112103112 its reverse (21130121131), we get a palindrome (34242224243).

The spelling of 13112103112 in words is "thirteen billion, one hundred twelve million, one hundred three thousand, one hundred twelve".