11552206342321 has 4 divisors (see below), whose sum is σ = 11552236881444. Its totient is φ = 11552175803200.

The previous prime is 11552206342289. The next prime is 11552206342343. The reversal of 11552206342321 is 12324360225511.

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 2501344686096 + 9050861656225 = 1581564^2 + 3008465^2 .

It is a cyclic number.

It is not a de Polignac number, because 11552206342321 - 2⁵ = 11552206342289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11552206342351) 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, 14694940 + ... + 15461101.

It is an arithmetic number, because the mean of its divisors is an integer number (2888059220361).

Almost surely, 2^{11552206342321} is an apocalyptic number.

It is an amenable number.

11552206342321 is a deficient number, since it is larger than the sum of its proper divisors (30539123).

11552206342321 is an equidigital number, since it uses as much as digits as its factorization.

11552206342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30539122.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 11552206342321 its reverse (12324360225511), we get a palindrome (23876566567832).

The spelling of 11552206342321 in words is "eleven trillion, five hundred fifty-two billion, two hundred six million, three hundred forty-two thousand, three hundred twenty-one".