13120868 has 12 divisors (see below), whose sum is σ = 24170160. Its totient is φ = 6215112.

The previous prime is 13120867. The next prime is 13120883. The reversal of 13120868 is 86802131.

It is a self number, because there is not a number n which added to its sum of digits gives 13120868.

It is not an unprimeable number, because it can be changed into a prime (13120867) 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, 86246 + ... + 86397.

It is an arithmetic number, because the mean of its divisors is an integer number (2014180).

Almost surely, 2^13120868 is an apocalyptic number.

It is an amenable number.

13120868 is a deficient number, since it is larger than the sum of its proper divisors (11049292).

13120868 is a wasteful number, since it uses less digits than its factorization.

13120868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172666 (or 172664 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13120868 is about 3622.2738714791. The cubic root of 13120868 is about 235.8599427523.

Adding to 13120868 its reverse (86802131), we get a palindrome (99922999).

The spelling of 13120868 in words is "thirteen million, one hundred twenty thousand, eight hundred sixty-eight".