13111100 has 18 divisors (see below), whose sum is σ = 28451304. Its totient is φ = 5244400.

The previous prime is 13111093. The next prime is 13111117. The reversal of 13111100 is 111131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65456 + ... + 65655.

It is an arithmetic number, because the mean of its divisors is an integer number (1580628).

Almost surely, 2^13111100 is an apocalyptic number.

13111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111100 is an abundant number, since it is smaller than the sum of its proper divisors (15340204).

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

13111100 is a wasteful number, since it uses less digits than its factorization.

13111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131125 (or 131118 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 13111100 is about 3620.9252961087. The cubic root of 13111100 is about 235.8013985596.

Adding to 13111100 its reverse (111131), we get a palindrome (13222231).

The spelling of 13111100 in words is "thirteen million, one hundred eleven thousand, one hundred".