11132326561 has 2 divisors, whose sum is σ = 11132326562. Its totient is φ = 11132326560.

The previous prime is 11132326553. The next prime is 11132326573. The reversal of 11132326561 is 16562323111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5767643025 + 5364683536 = 75945^2 + 73244^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132326561 - 2³ = 11132326553 is a prime.

It is not a weakly prime, because it can be changed into another prime (11132326591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566163280 + 5566163281.

It is an arithmetic number, because the mean of its divisors is an integer number (5566163281).

Almost surely, 2^11132326561 is an apocalyptic number.

It is an amenable number.

11132326561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11132326561 is an equidigital number, since it uses as much as digits as its factorization.

11132326561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

Adding to 11132326561 its reverse (16562323111), we get a palindrome (27694649672).

The spelling of 11132326561 in words is "eleven billion, one hundred thirty-two million, three hundred twenty-six thousand, five hundred sixty-one".