2011120011001 has 4 divisors (see below), whose sum is σ = 2011640625792. Its totient is φ = 2010599396212.

The previous prime is 2011120010987. The next prime is 2011120011031. The reversal of 2011120011001 is 1001100211102.

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 2011120011001 - 2⁹ = 2011120010489 is a prime.

It is a super-2 number, since 2×2011120011001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011120011031) 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, 260301601 + ... + 260309326.

It is an arithmetic number, because the mean of its divisors is an integer number (502910156448).

Almost surely, 2^{2011120011001} is an apocalyptic number.

It is an amenable number.

2011120011001 is a deficient number, since it is larger than the sum of its proper divisors (520614791).

2011120011001 is an equidigital number, since it uses as much as digits as its factorization.

2011120011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520614790.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011120011001 its reverse (1001100211102), we get a palindrome (3012220222103).

The spelling of 2011120011001 in words is "two trillion, eleven billion, one hundred twenty million, eleven thousand, one".