2100520213 has 8 divisors (see below), whose sum is σ = 2295387360. Its totient is φ = 1906304880.

The previous prime is 2100520207. The next prime is 2100520249. The reversal of 2100520213 is 3120250012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100520213 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 (2100520273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156198 + ... + 169111.

It is an arithmetic number, because the mean of its divisors is an integer number (286923420).

Almost surely, 2^2100520213 is an apocalyptic number.

It is an amenable number.

2100520213 is a deficient number, since it is larger than the sum of its proper divisors (194867147).

2100520213 is a wasteful number, since it uses less digits than its factorization.

2100520213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325907.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2100520213 is about 45831.4325872539. The cubic root of 2100520213 is about 1280.6848981507.

Adding to 2100520213 its reverse (3120250012), we get a palindrome (5220770225).

The spelling of 2100520213 in words is "two billion, one hundred million, five hundred twenty thousand, two hundred thirteen".