201312213 has 4 divisors (see below), whose sum is σ = 268416288. Its totient is φ = 134208140.

The previous prime is 201312211. The next prime is 201312217. The reversal of 201312213 is 312213102.

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 201312213 - 2¹ = 201312211 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201312192 and 201312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312211) 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, 33552033 + ... + 33552038.

It is an arithmetic number, because the mean of its divisors is an integer number (67104072).

Almost surely, 2^201312213 is an apocalyptic number.

It is an amenable number.

201312213 is a deficient number, since it is larger than the sum of its proper divisors (67104075).

201312213 is an equidigital number, since it uses as much as digits as its factorization.

201312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67104074.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201312213 is about 14188.4535098086. The cubic root of 201312213 is about 586.0797386707.

Adding to 201312213 its reverse (312213102), we get a palindrome (513525315).

The spelling of 201312213 in words is "two hundred one million, three hundred twelve thousand, two hundred thirteen".