2100112012013 has 4 divisors (see below), whose sum is σ = 2100680074140. Its totient is φ = 2099543949888.

The previous prime is 2100112011971. The next prime is 2100112012043. The reversal of 2100112012013 is 3102102110012.

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 274594864324 + 1825517147689 = 524018^2 + 1351117^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100112012013 - 2⁸ = 2100112011757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100112012043) 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, 284025518 + ... + 284032911.

It is an arithmetic number, because the mean of its divisors is an integer number (525170018535).

Almost surely, 2^{2100112012013} is an apocalyptic number.

It is an amenable number.

2100112012013 is a deficient number, since it is larger than the sum of its proper divisors (568062127).

2100112012013 is an equidigital number, since it uses as much as digits as its factorization.

2100112012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568062126.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2100112012013 its reverse (3102102110012), we get a palindrome (5202214122025).

The spelling of 2100112012013 in words is "two trillion, one hundred billion, one hundred twelve million, twelve thousand, thirteen".