2101310213 has 4 divisors (see below), whose sum is σ = 2132673120. Its totient is φ = 2069947308.

The previous prime is 2101310209. The next prime is 2101310243. The reversal of 2101310213 is 3120131012.

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 2101310213 - 2² = 2101310209 is a prime.

It is a super-2 number, since 2×2101310213² = 8831009222516210738, which 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 (2101310243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15681353 + ... + 15681486.

It is an arithmetic number, because the mean of its divisors is an integer number (533168280).

Almost surely, 2^2101310213 is an apocalyptic number.

It is an amenable number.

2101310213 is a deficient number, since it is larger than the sum of its proper divisors (31362907).

2101310213 is an equidigital number, since it uses as much as digits as its factorization.

2101310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31362906.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2101310213 is about 45840.0503162900. The cubic root of 2101310213 is about 1280.8454320750.

Adding to 2101310213 its reverse (3120131012), we get a palindrome (5221441225).

The spelling of 2101310213 in words is "two billion, one hundred one million, three hundred ten thousand, two hundred thirteen".