2011200121023 has 16 divisors (see below), whose sum is σ = 2686541404800. Its totient is φ = 1338330782880.

The previous prime is 2011200120959. The next prime is 2011200121033. The reversal of 2011200121023 is 3201210021102.

It is not a de Polignac number, because 2011200121023 - 2⁶ = 2011200120959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011200120993 and 2011200121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011200121033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5982888 + ... + 6310098.

It is an arithmetic number, because the mean of its divisors is an integer number (167908837800).

Almost surely, 2^{2011200121023} is an apocalyptic number.

2011200121023 is a deficient number, since it is larger than the sum of its proper divisors (675341283777).

2011200121023 is a wasteful number, since it uses less digits than its factorization.

2011200121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330982.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2011200121023 its reverse (3201210021102), we get a palindrome (5212410142125).

The spelling of 2011200121023 in words is "two trillion, eleven billion, two hundred million, one hundred twenty-one thousand, twenty-three".