11311423 has 8 divisors (see below), whose sum is σ = 11966688. Its totient is φ = 10669824.

The previous prime is 11311397. The next prime is 11311453. The reversal of 11311423 is 32411311.

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

It is a cyclic number.

It is not a de Polignac number, because 11311423 - 2⁹ = 11310911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311397 and 11311406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311453) 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, 1690 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (1495836).

Almost surely, 2^11311423 is an apocalyptic number.

11311423 is a deficient number, since it is larger than the sum of its proper divisors (655265).

11311423 is an equidigital number, since it uses as much as digits as its factorization.

11311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833.

The product of its digits is 72, while the sum is 16.

The square root of 11311423 is about 3363.2459023985. The cubic root of 11311423 is about 224.4772919626.

Adding to 11311423 its reverse (32411311), we get a palindrome (43722734).

It can be divided in two parts, 11 and 311423, that multiplied together give a triangular number (3425653 = T₂₆₁₇).

The spelling of 11311423 in words is "eleven million, three hundred eleven thousand, four hundred twenty-three".