11340034421 has 4 divisors (see below), whose sum is σ = 11361800844. Its totient is φ = 11318268000.

The previous prime is 11340034411. The next prime is 11340034439. The reversal of 11340034421 is 12443004311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12443004311 = 1327 ⋅9376793.

It can be written as a sum of positive squares in 2 ways, for example, as 7372798225 + 3967236196 = 85865^2 + 62986^2 .

It is a cyclic number.

It is not a de Polignac number, because 11340034421 - 2⁶ = 11340034357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340034411) 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, 10882430 + ... + 10883471.

It is an arithmetic number, because the mean of its divisors is an integer number (2840450211).

Almost surely, 2^11340034421 is an apocalyptic number.

It is an amenable number.

11340034421 is a deficient number, since it is larger than the sum of its proper divisors (21766423).

11340034421 is an equidigital number, since it uses as much as digits as its factorization.

11340034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21766422.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11340034421 its reverse (12443004311), we get a palindrome (23783038732).

The spelling of 11340034421 in words is "eleven billion, three hundred forty million, thirty-four thousand, four hundred twenty-one".