13123289112 has 16 divisors (see below), whose sum is σ = 32808222840. Its totient is φ = 4374429696.

The previous prime is 13123289071. The next prime is 13123289141. The reversal of 13123289112 is 21198232131.

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, 273401833 + ... + 273401880.

Almost surely, 2^13123289112 is an apocalyptic number.

13123289112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13123289112 is an abundant number, since it is smaller than the sum of its proper divisors (19684933728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123289112 is a wasteful number, since it uses less digits than its factorization.

13123289112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546803722 (or 546803718 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The spelling of 13123289112 in words is "thirteen billion, one hundred twenty-three million, two hundred eighty-nine thousand, one hundred twelve".