2100210011113 has 4 divisors (see below), whose sum is σ = 2100227996548. Its totient is φ = 2100192025680.

The previous prime is 2100210011063. The next prime is 2100210011149. The reversal of 2100210011113 is 3111100120012.

It is a happy number.

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 163222464064 + 1936987547049 = 404008^2 + 1391757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100210011113 - 2¹³ = 2100210002921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100210011093 and 2100210011102.

It is not an unprimeable number, because it can be changed into a prime (2100210011173) 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, 8816406 + ... + 9051487.

It is an arithmetic number, because the mean of its divisors is an integer number (525056999137).

Almost surely, 2^{2100210011113} is an apocalyptic number.

It is an amenable number.

2100210011113 is a deficient number, since it is larger than the sum of its proper divisors (17985435).

2100210011113 is a wasteful number, since it uses less digits than its factorization.

2100210011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17985434.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 2100210011113 its reverse (3111100120012), we get a palindrome (5211310131125).

The spelling of 2100210011113 in words is "two trillion, one hundred billion, two hundred ten million, eleven thousand, one hundred thirteen".