2100323023213 has 4 divisors (see below), whose sum is σ = 2100439641628. Its totient is φ = 2100206404800.

The previous prime is 2100323023177. The next prime is 2100323023237. The reversal of 2100323023213 is 3123203230012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1373426956489 + 726896066724 = 1171933^2 + 852582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100323023213 is a prime.

It is a super-2 number, since 2×2100323023213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100323023283) 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, 58282188 + ... + 58318213.

It is an arithmetic number, because the mean of its divisors is an integer number (525109910407).

Almost surely, 2^{2100323023213} is an apocalyptic number.

It is an amenable number.

2100323023213 is a deficient number, since it is larger than the sum of its proper divisors (116618415).

2100323023213 is a wasteful number, since it uses less digits than its factorization.

2100323023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116618414.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2100323023213 its reverse (3123203230012), we get a palindrome (5223526253225).

The spelling of 2100323023213 in words is "two trillion, one hundred billion, three hundred twenty-three million, twenty-three thousand, two hundred thirteen".