2001312101 has 8 divisors (see below), whose sum is σ = 2021505024. Its totient is φ = 1981188720.

The previous prime is 2001312091. The next prime is 2001312107. The reversal of 2001312101 is 1012131002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001312101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001312107) 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, 41456 + ... + 75638.

It is an arithmetic number, because the mean of its divisors is an integer number (252688128).

Almost surely, 2^2001312101 is an apocalyptic number.

It is an amenable number.

2001312101 is a deficient number, since it is larger than the sum of its proper divisors (20192923).

2001312101 is a wasteful number, since it uses less digits than its factorization.

2001312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34771.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2001312101 is about 44736.0268799097. The cubic root of 2001312101 is about 1260.1965136092.

Adding to 2001312101 its reverse (1012131002), we get a palindrome (3013443103).

The spelling of 2001312101 in words is "two billion, one million, three hundred twelve thousand, one hundred one".