13120112 has 20 divisors (see below), whose sum is σ = 25656840. Its totient is φ = 6499008.

The previous prime is 13120111. The next prime is 13120139. The reversal of 13120112 is 21102131.

It is a junction number, because it is equal to n+sod(n) for n = 13120093 and 13120102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (1282842).

Almost surely, 2^13120112 is an apocalyptic number.

It is an amenable number.

13120112 is a deficient number, since it is larger than the sum of its proper divisors (12536728).

13120112 is a wasteful number, since it uses less digits than its factorization.

13120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640 (or 7634 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 13120112 is about 3622.1695156356. The cubic root of 13120112 is about 235.8554127283.

Adding to 13120112 its reverse (21102131), we get a palindrome (34222243).

The spelling of 13120112 in words is "thirteen million, one hundred twenty thousand, one hundred twelve".