11132021161 has 2 divisors, whose sum is σ = 11132021162. Its totient is φ = 11132021160.

The previous prime is 11132021041. The next prime is 11132021177. The reversal of 11132021161 is 16112023111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6097267225 + 5034753936 = 78085^2 + 70956^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132021161 - 2¹⁷ = 11131890089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11132021861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566010580 + 5566010581.

It is an arithmetic number, because the mean of its divisors is an integer number (5566010581).

Almost surely, 2^11132021161 is an apocalyptic number.

It is an amenable number.

11132021161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11132021161 is an equidigital number, since it uses as much as digits as its factorization.

11132021161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11132021161 its reverse (16112023111), we get a palindrome (27244044272).

The spelling of 11132021161 in words is "eleven billion, one hundred thirty-two million, twenty-one thousand, one hundred sixty-one".