11443404433 has 4 divisors (see below), whose sum is σ = 11448905508. Its totient is φ = 11437903360.

The previous prime is 11443404409. The next prime is 11443404439. The reversal of 11443404433 is 33440434411.

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: 33440434411 = 23087 ⋅1448453.

It can be written as a sum of positive squares in 2 ways, for example, as 7180359169 + 4263045264 = 84737^2 + 65292^2 .

It is a cyclic number.

It is not a de Polignac number, because 11443404433 - 2³³ = 2853469841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11443404395 and 11443404404.

It is not an unprimeable number, because it can be changed into a prime (11443404439) 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, 2747416 + ... + 2751577.

It is an arithmetic number, because the mean of its divisors is an integer number (2862226377).

Almost surely, 2^11443404433 is an apocalyptic number.

It is an amenable number.

11443404433 is a deficient number, since it is larger than the sum of its proper divisors (5501075).

11443404433 is an equidigital number, since it uses as much as digits as its factorization.

11443404433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501074.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 11443404433 its reverse (33440434411), we get a palindrome (44883838844).

The spelling of 11443404433 in words is "eleven billion, four hundred forty-three million, four hundred four thousand, four hundred thirty-three".