11121144423 has 8 divisors (see below), whose sum is σ = 15071277936. Its totient is φ = 7292553600.

The previous prime is 11121144421. The next prime is 11121144443. The reversal of 11121144423 is 32444112111.

It is a happy number.

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

It is not a de Polignac number, because 11121144423 - 2¹ = 11121144421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121144393 and 11121144402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121144421) 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, 30385458 + ... + 30385823.

It is an arithmetic number, because the mean of its divisors is an integer number (1883909742).

Almost surely, 2^11121144423 is an apocalyptic number.

11121144423 is a deficient number, since it is larger than the sum of its proper divisors (3950133513).

11121144423 is an equidigital number, since it uses as much as digits as its factorization.

11121144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60771345.

The product of its digits is 768, while the sum is 24.

Adding to 11121144423 its reverse (32444112111), we get a palindrome (43565256534).

The spelling of 11121144423 in words is "eleven billion, one hundred twenty-one million, one hundred forty-four thousand, four hundred twenty-three".