2100200121013 has 8 divisors (see below), whose sum is σ = 2224010378520. Its totient is φ = 1976419760640.

The previous prime is 2100200121007. The next prime is 2100200121049. The reversal of 2100200121013 is 3101210020012.

It can be written as a sum of positive squares in 4 ways, for example, as 1710427155889 + 389772965124 = 1307833^2 + 624318^2 .

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

It is not a de Polignac number, because 2100200121013 - 2¹³ = 2100200112821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100200120984 and 2100200121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100200121413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7329568 + ... + 7610713.

It is an arithmetic number, because the mean of its divisors is an integer number (278001297315).

Almost surely, 2^{2100200121013} is an apocalyptic number.

It is an amenable number.

2100200121013 is a deficient number, since it is larger than the sum of its proper divisors (123810257507).

2100200121013 is a wasteful number, since it uses less digits than its factorization.

2100200121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14948567.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2100200121013 its reverse (3101210020012), we get a palindrome (5201410141025).

The spelling of 2100200121013 in words is "two trillion, one hundred billion, two hundred million, one hundred twenty-one thousand, thirteen".