1133001001 has 4 divisors (see below), whose sum is σ = 1236001104. Its totient is φ = 1030000900.

The previous prime is 1133000987. The next prime is 1133001017. The reversal of 1133001001 is 1001003311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1133001001 - 2⁷ = 1133000873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133101001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51500035 + ... + 51500056.

It is an arithmetic number, because the mean of its divisors is an integer number (309000276).

Almost surely, 2^1133001001 is an apocalyptic number.

1133001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1133001001 is a deficient number, since it is larger than the sum of its proper divisors (103000103).

1133001001 is a wasteful number, since it uses less digits than its factorization.

1133001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103000102.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1133001001 is about 33660.0802286626. The cubic root of 1133001001 is about 1042.5016824115.

Adding to 1133001001 its reverse (1001003311), we get a palindrome (2134004312).

The spelling of 1133001001 in words is "one billion, one hundred thirty-three million, one thousand, one".