201123022010213 has 4 divisors (see below), whose sum is σ = 202591073265900. Its totient is φ = 199654970754528.

The previous prime is 201123022010153. The next prime is 201123022010237. The reversal of 201123022010213 is 312010220321102.

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 83109605903809 + 118013416106404 = 9116447^2 + 10863398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201123022010213 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 (201123022013213) 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, 734025627638 + ... + 734025627911.

It is an arithmetic number, because the mean of its divisors is an integer number (50647768316475).

Almost surely, 2^{201123022010213} is an apocalyptic number.

It is an amenable number.

201123022010213 is a deficient number, since it is larger than the sum of its proper divisors (1468051255687).

201123022010213 is a wasteful number, since it uses less digits than its factorization.

201123022010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468051255686.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201123022010213 its reverse (312010220321102), we get a palindrome (513133242331315).

The spelling of 201123022010213 in words is "two hundred one trillion, one hundred twenty-three billion, twenty-two million, ten thousand, two hundred thirteen".