13930311 has 4 divisors (see below), whose sum is σ = 18573752. Its totient is φ = 9286872.

The previous prime is 13930289. The next prime is 13930331. The reversal of 13930311 is 11303931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11303931 = 3 ⋅3767977.

It is not a de Polignac number, because 13930311 - 2⁶ = 13930247 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 (13930331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321716 + ... + 2321721.

It is an arithmetic number, because the mean of its divisors is an integer number (4643438).

Almost surely, 2^13930311 is an apocalyptic number.

13930311 is a deficient number, since it is larger than the sum of its proper divisors (4643441).

13930311 is an equidigital number, since it uses as much as digits as its factorization.

13930311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643440.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 13930311 is about 3732.3331844839. Note that the first 3 decimals coincide. The cubic root of 13930311 is about 240.6136553037.

It can be divided in two parts, 13930 and 311, that added together give a palindrome (14241).

The spelling of 13930311 in words is "thirteen million, nine hundred thirty thousand, three hundred eleven".