13111040 has 36 divisors (see below), whose sum is σ = 31408104. Its totient is φ = 5243904.

The previous prime is 13111027. The next prime is 13111067. The reversal of 13111040 is 4011131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842 + ... + 6401.

Almost surely, 2^13111040 is an apocalyptic number.

13111040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111040 is an abundant number, since it is smaller than the sum of its proper divisors (18297064).

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

13111040 is an equidigital number, since it uses as much as digits as its factorization.

13111040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264 (or 10250 counting only the distinct ones).

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

The square root of 13111040 is about 3620.9170109242. The cubic root of 13111040 is about 235.8010388617.

Adding to 13111040 its reverse (4011131), we get a palindrome (17122171).

Subtracting from 13111040 its reverse (4011131), we obtain a palindrome (9099909).

The spelling of 13111040 in words is "thirteen million, one hundred eleven thousand, forty".