11611370321 has 2 divisors, whose sum is σ = 11611370322. Its totient is φ = 11611370320.

The previous prime is 11611370299. The next prime is 11611370341. The reversal of 11611370321 is 12307311611.

11611370321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8126121025 + 3485249296 = 90145^2 + 59036^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611370321 - 2¹⁴ = 11611353937 is a prime.

It is not a weakly prime, because it can be changed into another prime (11611370341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805685160 + 5805685161.

It is an arithmetic number, because the mean of its divisors is an integer number (5805685161).

Almost surely, 2^11611370321 is an apocalyptic number.

It is an amenable number.

11611370321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611370321 is an equidigital number, since it uses as much as digits as its factorization.

11611370321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 11611370321 its reverse (12307311611), we get a palindrome (23918681932).

The spelling of 11611370321 in words is "eleven billion, six hundred eleven million, three hundred seventy thousand, three hundred twenty-one".