11133440001 has 6 divisors (see below), whose sum is σ = 16081635570. Its totient is φ = 7422293328.

The previous prime is 11133439981. The next prime is 11133440027. The reversal of 11133440001 is 10004433111.

It can be written as a sum of positive squares in only one way, i.e., 10904371776 + 229068225 = 104424^2 + 15135^2 .

It is not a de Polignac number, because 11133440001 - 2¹⁷ = 11133308929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11133440081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618524436 + ... + 618524453.

It is an arithmetic number, because the mean of its divisors is an integer number (2680272595).

Almost surely, 2^11133440001 is an apocalyptic number.

It is an amenable number.

11133440001 is a deficient number, since it is larger than the sum of its proper divisors (4948195569).

11133440001 is a wasteful number, since it uses less digits than its factorization.

11133440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237048895 (or 1237048892 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11133440001 its reverse (10004433111), we get a palindrome (21137873112).

The spelling of 11133440001 in words is "eleven billion, one hundred thirty-three million, four hundred forty thousand, one".