20113030213213 has 4 divisors (see below), whose sum is σ = 22986320243680. Its totient is φ = 17239740182748.

The previous prime is 20113030213189. The next prime is 20113030213273. The reversal of 20113030213213 is 31231203031102.

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 20113030213213 - 2³³ = 20104440278621 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 (20113030213273) 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, 1436645015223 + ... + 1436645015236.

It is an arithmetic number, because the mean of its divisors is an integer number (5746580060920).

Almost surely, 2^{20113030213213} is an apocalyptic number.

It is an amenable number.

20113030213213 is a deficient number, since it is larger than the sum of its proper divisors (2873290030467).

20113030213213 is an equidigital number, since it uses as much as digits as its factorization.

20113030213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873290030466.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20113030213213 its reverse (31231203031102), we get a palindrome (51344233244315).

The spelling of 20113030213213 in words is "twenty trillion, one hundred thirteen billion, thirty million, two hundred thirteen thousand, two hundred thirteen".