201020233213 has 4 divisors (see below), whose sum is σ = 201074552028. Its totient is φ = 200965914400.

The previous prime is 201020233177. The next prime is 201020233229. The reversal of 201020233213 is 312332020102.

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 96912048249 + 104108184964 = 311307^2 + 322658^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020233213 - 2²¹ = 201018136061 is a prime.

It is a super-2 number, since 2×201020233213² (a number of 23 digits) 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 (201020237213) 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, 27153856 + ... + 27161257.

It is an arithmetic number, because the mean of its divisors is an integer number (50268638007).

Almost surely, 2^201020233213 is an apocalyptic number.

It is an amenable number.

201020233213 is a deficient number, since it is larger than the sum of its proper divisors (54318815).

201020233213 is an equidigital number, since it uses as much as digits as its factorization.

201020233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54318814.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201020233213 its reverse (312332020102), we get a palindrome (513352253315).

The spelling of 201020233213 in words is "two hundred one billion, twenty million, two hundred thirty-three thousand, two hundred thirteen".