11231134423 has 4 divisors (see below), whose sum is σ = 11262419280. Its totient is φ = 11199849568.

The previous prime is 11231134417. The next prime is 11231134457. The reversal of 11231134423 is 32443113211.

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 11231134423 - 2⁵ = 11231134391 is a prime.

It is a super-2 number, since 2×11231134423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231134483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15641890 + ... + 15642607.

It is an arithmetic number, because the mean of its divisors is an integer number (2815604820).

Almost surely, 2^11231134423 is an apocalyptic number.

11231134423 is a deficient number, since it is larger than the sum of its proper divisors (31284857).

11231134423 is an equidigital number, since it uses as much as digits as its factorization.

11231134423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31284856.

The product of its digits is 1728, while the sum is 25.

Adding to 11231134423 its reverse (32443113211), we get a palindrome (43674247634).

The spelling of 11231134423 in words is "eleven billion, two hundred thirty-one million, one hundred thirty-four thousand, four hundred twenty-three".