2113403023213 has 4 divisors (see below), whose sum is σ = 2117707306848. Its totient is φ = 2109098739580.

The previous prime is 2113403023189. The next prime is 2113403023217. The reversal of 2113403023213 is 3123203043112.

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 a de Polignac number, because none of the positive numbers 2^k-2113403023213 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 (2113403023217) 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, 2152141081 + ... + 2152142062.

It is an arithmetic number, because the mean of its divisors is an integer number (529426826712).

Almost surely, 2^{2113403023213} is an apocalyptic number.

It is an amenable number.

2113403023213 is a deficient number, since it is larger than the sum of its proper divisors (4304283635).

2113403023213 is an equidigital number, since it uses as much as digits as its factorization.

2113403023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304283634.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2113403023213 its reverse (3123203043112), we get a palindrome (5236606066325).

The spelling of 2113403023213 in words is "two trillion, one hundred thirteen billion, four hundred three million, twenty-three thousand, two hundred thirteen".