213110101 has 4 divisors (see below), whose sum is σ = 215220204. Its totient is φ = 211000000.

The previous prime is 213110071. The next prime is 213110159. The reversal of 213110101 is 101011312.

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 124768900 + 88341201 = 11170^2 + 9399^2 .

It is a cyclic number.

It is not a de Polignac number, because 213110101 - 2¹¹ = 213108053 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 (213110171) 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, 1054900 + ... + 1055101.

It is an arithmetic number, because the mean of its divisors is an integer number (53805051).

Almost surely, 2^213110101 is an apocalyptic number.

It is an amenable number.

213110101 is a deficient number, since it is larger than the sum of its proper divisors (2110103).

213110101 is a wasteful number, since it uses less digits than its factorization.

213110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110102.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 213110101 is about 14598.2910301172. The cubic root of 213110101 is about 597.3121446286.

Adding to 213110101 its reverse (101011312), we get a palindrome (314121413).

The spelling of 213110101 in words is "two hundred thirteen million, one hundred ten thousand, one hundred one".