13811383 has 4 divisors (see below), whose sum is σ = 14148288. Its totient is φ = 13474480.

The previous prime is 13811359. The next prime is 13811387. The reversal of 13811383 is 38311831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13811383 - 2⁵ = 13811351 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 (13811387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168391 + ... + 168472.

It is an arithmetic number, because the mean of its divisors is an integer number (3537072).

Almost surely, 2^13811383 is an apocalyptic number.

13811383 is a deficient number, since it is larger than the sum of its proper divisors (336905).

13811383 is an equidigital number, since it uses as much as digits as its factorization.

13811383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336904.

The product of its digits is 1728, while the sum is 28.

The square root of 13811383 is about 3716.3669086892. The cubic root of 13811383 is about 239.9269627291.

It can be divided in two parts, 1381138 and 3, that multiplied together give a palindrome (4143414).

The spelling of 13811383 in words is "thirteen million, eight hundred eleven thousand, three hundred eighty-three".