2102120013013 has 4 divisors (see below), whose sum is σ = 2102440904928. Its totient is φ = 2101799121100.

The previous prime is 2102120013011. The next prime is 2102120013073. The reversal of 2102120013013 is 3103100212012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102120013013 - 2¹ = 2102120013011 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 (2102120013011) 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 3 ways as a sum of consecutive naturals, for example, 160436131 + ... + 160449232.

It is an arithmetic number, because the mean of its divisors is an integer number (525610226232).

Almost surely, 2^{2102120013013} is an apocalyptic number.

It is an amenable number.

2102120013013 is a deficient number, since it is larger than the sum of its proper divisors (320891915).

2102120013013 is an equidigital number, since it uses as much as digits as its factorization.

2102120013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320891914.

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

Adding to 2102120013013 its reverse (3103100212012), we get a palindrome (5205220225025).

The spelling of 2102120013013 in words is "two trillion, one hundred two billion, one hundred twenty million, thirteen thousand, thirteen".