1121712001 has 8 divisors (see below), whose sum is σ = 1174253184. Its totient is φ = 1069485120.

The previous prime is 1121711999. The next prime is 1121712019. The reversal of 1121712001 is 1002171211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121712001 - 2¹ = 1121711999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121712041) 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, 71256 + ... + 85561.

It is an arithmetic number, because the mean of its divisors is an integer number (146781648).

Almost surely, 2^1121712001 is an apocalyptic number.

It is an amenable number.

1121712001 is a deficient number, since it is larger than the sum of its proper divisors (52541183).

1121712001 is a wasteful number, since it uses less digits than its factorization.

1121712001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157151.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 1121712001 is about 33491.9692015862. The cubic root of 1121712001 is about 1039.0276911735.

Adding to 1121712001 its reverse (1002171211), we get a palindrome (2123883212).

The spelling of 1121712001 in words is "one billion, one hundred twenty-one million, seven hundred twelve thousand, one".