11331423 has 6 divisors (see below), whose sum is σ = 16367624. Its totient is φ = 7554276.

The previous prime is 11331389. The next prime is 11331473. The reversal of 11331423 is 32413311.

It is not a de Polignac number, because 11331423 - 2⁸ = 11331167 is a prime.

It is a super-2 number, since 2×11331423² = 256802294409858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331396 and 11331405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629515 + ... + 629532.

Almost surely, 2^11331423 is an apocalyptic number.

11331423 is a deficient number, since it is larger than the sum of its proper divisors (5036201).

11331423 is a wasteful number, since it uses less digits than its factorization.

11331423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259053 (or 1259050 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 11331423 is about 3366.2179073851. The cubic root of 11331423 is about 224.6095153033.

Adding to 11331423 its reverse (32413311), we get a palindrome (43744734).

It can be divided in two parts, 1133 and 1423, that added together give a triangular number (2556 = T₇₁).

The spelling of 11331423 in words is "eleven million, three hundred thirty-one thousand, four hundred twenty-three".