213023213322113 has 4 divisors (see below), whose sum is σ = 213041658498900. Its totient is φ = 213004768145328.

The previous prime is 213023213322107. The next prime is 213023213322119. The reversal of 213023213322113 is 311223312320312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (213023213322107) and next prime (213023213322119).

It can be written as a sum of positive squares in 2 ways, for example, as 170035940687089 + 42987272635024 = 13039783^2 + 6556468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213023213322113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213023213322119) 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, 9222571070 + ... + 9222594167.

It is an arithmetic number, because the mean of its divisors is an integer number (53260414624725).

Almost surely, 2^{213023213322113} is an apocalyptic number.

It is an amenable number.

213023213322113 is a deficient number, since it is larger than the sum of its proper divisors (18445176787).

213023213322113 is a wasteful number, since it uses less digits than its factorization.

213023213322113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18445176786.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 213023213322113 its reverse (311223312320312), we get a palindrome (524246525642425).

The spelling of 213023213322113 in words is "two hundred thirteen trillion, twenty-three billion, two hundred thirteen million, three hundred twenty-two thousand, one hundred thirteen".