2011200323101 has 4 divisors (see below), whose sum is σ = 2011971195900. Its totient is φ = 2010429450304.

The previous prime is 2011200323081. The next prime is 2011200323117. The reversal of 2011200323101 is 1013230021102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1611490608025 + 399709715076 = 1269445^2 + 632226^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011200323101 - 2⁹ = 2011200322589 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 (2011200323131) 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, 385432486 + ... + 385437703.

It is an arithmetic number, because the mean of its divisors is an integer number (502992798975).

Almost surely, 2^{2011200323101} is an apocalyptic number.

It is an amenable number.

2011200323101 is a deficient number, since it is larger than the sum of its proper divisors (770872799).

2011200323101 is an equidigital number, since it uses as much as digits as its factorization.

2011200323101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770872798.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2011200323101 its reverse (1013230021102), we get a palindrome (3024430344203).

The spelling of 2011200323101 in words is "two trillion, eleven billion, two hundred million, three hundred twenty-three thousand, one hundred one".