212100300013 has 4 divisors (see below), whose sum is σ = 242400342880. Its totient is φ = 181800257148.

The previous prime is 212100300011. The next prime is 212100300023. The reversal of 212100300013 is 310003001212.

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 212100300013 - 2¹ = 212100300011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212100299966 and 212100300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100300011) 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, 15150021423 + ... + 15150021436.

It is an arithmetic number, because the mean of its divisors is an integer number (60600085720).

Almost surely, 2^212100300013 is an apocalyptic number.

It is an amenable number.

212100300013 is a deficient number, since it is larger than the sum of its proper divisors (30300042867).

212100300013 is an equidigital number, since it uses as much as digits as its factorization.

212100300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30300042866.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 212100300013 its reverse (310003001212), we get a palindrome (522103301225).

It can be divided in two parts, 212 and 100300013, that added together give a square (100300225 = 10015²).

The spelling of 212100300013 in words is "two hundred twelve billion, one hundred million, three hundred thousand, thirteen".