11311004442161 has 2 divisors, whose sum is σ = 11311004442162. Its totient is φ = 11311004442160.

The previous prime is 11311004442121. The next prime is 11311004442349. The reversal of 11311004442161 is 16124440011311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11310145659136 + 858783025 = 3363056^2 + 29305^2 .

It is a cyclic number.

It is not a de Polignac number, because 11311004442161 - 2³⁰ = 11309930700337 is a prime.

It is not a weakly prime, because it can be changed into another prime (11311004442121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655502221080 + 5655502221081.

It is an arithmetic number, because the mean of its divisors is an integer number (5655502221081).

Almost surely, 2^{11311004442161} is an apocalyptic number.

It is an amenable number.

11311004442161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311004442161 is an equidigital number, since it uses as much as digits as its factorization.

11311004442161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 11311004442161 its reverse (16124440011311), we get a palindrome (27435444453472).

The spelling of 11311004442161 in words is "eleven trillion, three hundred eleven billion, four million, four hundred forty-two thousand, one hundred sixty-one".