1131444201 has 8 divisors (see below), whose sum is σ = 1549365184. Its totient is φ = 733909680.

The previous prime is 1131444191. The next prime is 1131444203. The reversal of 1131444201 is 1024441311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131444201 - 2⁷ = 1131444073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131444203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5096485 + ... + 5096706.

It is an arithmetic number, because the mean of its divisors is an integer number (193670648).

Almost surely, 2^1131444201 is an apocalyptic number.

It is an amenable number.

1131444201 is a deficient number, since it is larger than the sum of its proper divisors (417920983).

1131444201 is a wasteful number, since it uses less digits than its factorization.

1131444201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193231.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1131444201 is about 33636.9469631237. The cubic root of 1131444201 is about 1042.0239804114.

Adding to 1131444201 its reverse (1024441311), we get a palindrome (2155885512).

The spelling of 1131444201 in words is "one billion, one hundred thirty-one million, four hundred forty-four thousand, two hundred one".