13831023 has 4 divisors (see below), whose sum is σ = 18441368. Its totient is φ = 9220680.

The previous prime is 13831009. The next prime is 13831043. The reversal of 13831023 is 32013831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32013831 = 3 ⋅10671277.

It is not a de Polignac number, because 13831023 - 2¹⁴ = 13814639 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 (13831043) 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, 2305168 + ... + 2305173.

It is an arithmetic number, because the mean of its divisors is an integer number (4610342).

Almost surely, 2^13831023 is an apocalyptic number.

13831023 is a deficient number, since it is larger than the sum of its proper divisors (4610345).

13831023 is an equidigital number, since it uses as much as digits as its factorization.

13831023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610344.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13831023 is about 3719.0083355647. The cubic root of 13831023 is about 240.0406354805.

Adding to 13831023 its reverse (32013831), we get a palindrome (45844854).

The spelling of 13831023 in words is "thirteen million, eight hundred thirty-one thousand, twenty-three".