201124213 has 6 divisors (see below), whose sum is σ = 210249494. Its totient is φ = 192379176.

The previous prime is 201124199. The next prime is 201124219. The reversal of 201124213 is 312421102.

It can be written as a sum of positive squares in only one way, i.e., 129095044 + 72029169 = 11362^2 + 8487^2 .

It is not a de Polignac number, because 201124213 - 2⁵ = 201124181 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 (201124219) 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 5 ways as a sum of consecutive naturals, for example, 189570 + ... + 190627.

Almost surely, 2^201124213 is an apocalyptic number.

201124213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

201124213 is a deficient number, since it is larger than the sum of its proper divisors (9125281).

201124213 is an equidigital number, since it uses as much as digits as its factorization.

201124213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380243 (or 380220 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201124213 is about 14181.8268569321. The cubic root of 201124213 is about 585.8972405400.

Adding to 201124213 its reverse (312421102), we get a palindrome (513545315).

The spelling of 201124213 in words is "two hundred one million, one hundred twenty-four thousand, two hundred thirteen".