220444423313 has 4 divisors (see below), whose sum is σ = 225134730240. Its totient is φ = 215754116388.

The previous prime is 220444423301. The next prime is 220444423321. The reversal of 220444423313 is 313324444022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220444423313 - 2²⁶ = 220377314449 is a prime.

It is a super-2 number, since 2×220444423313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220444423313.

It is not an unprimeable number, because it can be changed into a prime (220444423363) 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, 2345153393 + ... + 2345153486.

It is an arithmetic number, because the mean of its divisors is an integer number (56283682560).

Almost surely, 2^220444423313 is an apocalyptic number.

It is an amenable number.

220444423313 is a deficient number, since it is larger than the sum of its proper divisors (4690306927).

220444423313 is an equidigital number, since it uses as much as digits as its factorization.

220444423313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690306926.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 220444423313 its reverse (313324444022), we get a palindrome (533768867335).

The spelling of 220444423313 in words is "two hundred twenty billion, four hundred forty-four million, four hundred twenty-three thousand, three hundred thirteen".