2100453213 has 4 divisors (see below), whose sum is σ = 2800604288. Its totient is φ = 1400302140.

The previous prime is 2100453191. The next prime is 2100453221. The reversal of 2100453213 is 3123540012.

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 not a de Polignac number, because 2100453213 - 2¹⁴ = 2100436829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100453213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100453233) 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, 350075533 + ... + 350075538.

It is an arithmetic number, because the mean of its divisors is an integer number (700151072).

Almost surely, 2^2100453213 is an apocalyptic number.

It is an amenable number.

2100453213 is a deficient number, since it is larger than the sum of its proper divisors (700151075).

2100453213 is an equidigital number, since it uses as much as digits as its factorization.

2100453213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700151074.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2100453213 is about 45830.7016420216. The cubic root of 2100453213 is about 1280.6712813968.

Adding to 2100453213 its reverse (3123540012), we get a palindrome (5223993225).

The spelling of 2100453213 in words is "two billion, one hundred million, four hundred fifty-three thousand, two hundred thirteen".