223013201321 has 4 divisors (see below), whose sum is σ = 223014878292. Its totient is φ = 223011524352.

The previous prime is 223013201273. The next prime is 223013201329. The reversal of 223013201321 is 123102310322.

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 38058157225 + 184955044096 = 195085^2 + 430064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223013201321 is a prime.

It is a super-2 number, since 2×223013201321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223013201293 and 223013201302.

It is not an unprimeable number, because it can be changed into a prime (223013201329) 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 3 ways as a sum of consecutive naturals, for example, 620036 + ... + 911301.

It is an arithmetic number, because the mean of its divisors is an integer number (55753719573).

Almost surely, 2^223013201321 is an apocalyptic number.

It is an amenable number.

223013201321 is a deficient number, since it is larger than the sum of its proper divisors (1676971).

223013201321 is a wasteful number, since it uses less digits than its factorization.

223013201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676970.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 223013201321 its reverse (123102310322), we get a palindrome (346115511643).

The spelling of 223013201321 in words is "two hundred twenty-three billion, thirteen million, two hundred one thousand, three hundred twenty-one".