223021313213 has 8 divisors (see below), whose sum is σ = 224612439000. Its totient is φ = 221431445568.

The previous prime is 223021313191. The next prime is 223021313237. The reversal of 223021313213 is 312313120322.

It can be written as a sum of positive squares in 4 ways, for example, as 8945754724 + 214075558489 = 94582^2 + 462683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223021313213 - 2⁸ = 223021312957 is a prime.

It is a super-2 number, since 2×223021313213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223021313293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42695 + ... + 669227.

It is an arithmetic number, because the mean of its divisors is an integer number (28076554875).

Almost surely, 2^223021313213 is an apocalyptic number.

It is an amenable number.

223021313213 is a deficient number, since it is larger than the sum of its proper divisors (1591125787).

223021313213 is a wasteful number, since it uses less digits than its factorization.

223021313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629071.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 223021313213 its reverse (312313120322), we get a palindrome (535334433535).

The spelling of 223021313213 in words is "two hundred twenty-three billion, twenty-one million, three hundred thirteen thousand, two hundred thirteen".