2100213223 has 2 divisors, whose sum is σ = 2100213224. Its totient is φ = 2100213222.

The previous prime is 2100213221. The next prime is 2100213229. The reversal of 2100213223 is 3223120012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100213223 - 2¹ = 2100213221 is a prime.

Together with 2100213221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2100213197 and 2100213206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050106611 + 1050106612.

It is an arithmetic number, because the mean of its divisors is an integer number (1050106612).

Almost surely, 2^2100213223 is an apocalyptic number.

2100213223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100213223 is an equidigital number, since it uses as much as digits as its factorization.

2100213223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2100213223 is about 45828.0833441679. The cubic root of 2100213223 is about 1280.6225046209.

Adding to 2100213223 its reverse (3223120012), we get a palindrome (5323333235).

It can be divided in two parts, 21002 and 13223, that added together give a square (34225 = 185²).

The spelling of 2100213223 in words is "two billion, one hundred million, two hundred thirteen thousand, two hundred twenty-three".