13140311 has 8 divisors (see below), whose sum is σ = 13730304. Its totient is φ = 12560760.

The previous prime is 13140293. The next prime is 13140313. The reversal of 13140311 is 11304131.

13140311 = 636² + 637² + ... + 666².

13140311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13140311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (1716288).

Almost surely, 2^13140311 is an apocalyptic number.

13140311 is a deficient number, since it is larger than the sum of its proper divisors (589993).

13140311 is an equidigital number, since it uses as much as digits as its factorization.

13140311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221.

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

The square root of 13140311 is about 3624.9566893964. The cubic root of 13140311 is about 235.9763873244.

Adding to 13140311 its reverse (11304131), we get a palindrome (24444442).

The spelling of 13140311 in words is "thirteen million, one hundred forty thousand, three hundred eleven".