201011213 has 16 divisors (see below), whose sum is σ = 229820976. Its totient is φ = 174167040.

The previous prime is 201011207. The next prime is 201011219. The reversal of 201011213 is 312110102.

It is an interprime number because it is at equal distance from previous prime (201011207) and next prime (201011219).

It can be written as a sum of positive squares in 8 ways, for example, as 16540489 + 184470724 = 4067^2 + 13582^2 .

It is not a de Polignac number, because 201011213 - 2¹² = 201007117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201011194 and 201011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100895 + ... + 102867.

It is an arithmetic number, because the mean of its divisors is an integer number (14363811).

Almost surely, 2^201011213 is an apocalyptic number.

It is an amenable number.

201011213 is a deficient number, since it is larger than the sum of its proper divisors (28809763).

201011213 is a wasteful number, since it uses less digits than its factorization.

201011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 201011213 is about 14177.8423252623. The cubic root of 201011213 is about 585.7874927873.

Adding to 201011213 its reverse (312110102), we get a palindrome (513121315).

The spelling of 201011213 in words is "two hundred one million, eleven thousand, two hundred thirteen".