11553441001 has 2 divisors, whose sum is σ = 11553441002. Its totient is φ = 11553441000.

The previous prime is 11553440999. The next prime is 11553441013. The reversal of 11553441001 is 10014435511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11525096025 + 28344976 = 107355^2 + 5324^2 .

It is a cyclic number.

It is not a de Polignac number, because 11553441001 - 2¹ = 11553440999 is a prime.

Together with 11553440999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11553441041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776720500 + 5776720501.

It is an arithmetic number, because the mean of its divisors is an integer number (5776720501).

Almost surely, 2^11553441001 is an apocalyptic number.

It is an amenable number.

11553441001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11553441001 is an equidigital number, since it uses as much as digits as its factorization.

11553441001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11553441001 its reverse (10014435511), we get a palindrome (21567876512).

The spelling of 11553441001 in words is "eleven billion, five hundred fifty-three million, four hundred forty-one thousand, one".