11232321161 has 2 divisors, whose sum is σ = 11232321162. Its totient is φ = 11232321160.

The previous prime is 11232321059. The next prime is 11232321227. The reversal of 11232321161 is 16112323211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10623218761 + 609102400 = 103069^2 + 24680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11232321161 - 2²² = 11228126857 is a prime.

It is not a weakly prime, because it can be changed into another prime (11232021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616160580 + 5616160581.

It is an arithmetic number, because the mean of its divisors is an integer number (5616160581).

Almost surely, 2^11232321161 is an apocalyptic number.

It is an amenable number.

11232321161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11232321161 is an equidigital number, since it uses as much as digits as its factorization.

11232321161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

Adding to 11232321161 its reverse (16112323211), we get a palindrome (27344644372).

The spelling of 11232321161 in words is "eleven billion, two hundred thirty-two million, three hundred twenty-one thousand, one hundred sixty-one".