11340134621 has 4 divisors (see below), whose sum is σ = 11342072700. Its totient is φ = 11338196544.

The previous prime is 11340134593. The next prime is 11340134657. The reversal of 11340134621 is 12643104311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3354031396 + 7986103225 = 57914^2 + 89365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11340134621 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 (11340134671) 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, 960236 + ... + 971973.

It is an arithmetic number, because the mean of its divisors is an integer number (2835518175).

Almost surely, 2^11340134621 is an apocalyptic number.

It is an amenable number.

11340134621 is a deficient number, since it is larger than the sum of its proper divisors (1938079).

11340134621 is an equidigital number, since it uses as much as digits as its factorization.

11340134621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938078.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 11340134621 its reverse (12643104311), we get a palindrome (23983238932).

The spelling of 11340134621 in words is "eleven billion, three hundred forty million, one hundred thirty-four thousand, six hundred twenty-one".