2113121130013 has 4 divisors (see below), whose sum is σ = 2113128018400. Its totient is φ = 2113114241628.

The previous prime is 2113121130011. The next prime is 2113121130067. The reversal of 2113121130013 is 3100311213112.

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 2113121130013 - 2¹ = 2113121130011 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 (2113121130011) 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, 2961495 + ... + 3605092.

It is an arithmetic number, because the mean of its divisors is an integer number (528282004600).

Almost surely, 2^{2113121130013} is an apocalyptic number.

It is an amenable number.

2113121130013 is a deficient number, since it is larger than the sum of its proper divisors (6888387).

2113121130013 is an equidigital number, since it uses as much as digits as its factorization.

2113121130013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888386.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2113121130013 its reverse (3100311213112), we get a palindrome (5213432343125).

The spelling of 2113121130013 in words is "two trillion, one hundred thirteen billion, one hundred twenty-one million, one hundred thirty thousand, thirteen".