2011000001001 has 4 divisors (see below), whose sum is σ = 2681333334672. Its totient is φ = 1340666667332.

The previous prime is 2011000000993. The next prime is 2011000001057. The reversal of 2011000001001 is 1001000001102.

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 2011000001001 - 2³ = 2011000000993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011000001081) 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, 335166666831 + ... + 335166666836.

It is an arithmetic number, because the mean of its divisors is an integer number (670333333668).

Almost surely, 2^{2011000001001} is an apocalyptic number.

It is an amenable number.

2011000001001 is a deficient number, since it is larger than the sum of its proper divisors (670333333671).

2011000001001 is an equidigital number, since it uses as much as digits as its factorization.

2011000001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670333333670.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 2011000001001 its reverse (1001000001102), we get a palindrome (3012000002103).

The spelling of 2011000001001 in words is "two trillion, eleven billion, one thousand, one".