13111340 has 48 divisors (see below), whose sum is σ = 30560544. Its totient is φ = 4684800.

The previous prime is 13111333. The next prime is 13111363. The reversal of 13111340 is 4311131.

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 15 ways as a sum of consecutive naturals, for example, 12932 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (636678).

Almost surely, 2^13111340 is an apocalyptic number.

13111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15280272).

13111340 is an abundant number, since it is smaller than the sum of its proper divisors (17449204).

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

13111340 is a wasteful number, since it uses less digits than its factorization.

13111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13111340 is about 3620.9584366573. The cubic root of 13111340 is about 235.8028373402.

Adding to 13111340 its reverse (4311131), we get a palindrome (17422471).

The spelling of 13111340 in words is "thirteen million, one hundred eleven thousand, three hundred forty".