20223143305 has 8 divisors (see below), whose sum is σ = 25695288072. Its totient is φ = 15226837248.

The previous prime is 20223143293. The next prime is 20223143363. The reversal of 20223143305 is 50334132202.

It can be written as a sum of positive squares in 4 ways, for example, as 7881710841 + 12341432464 = 88779^2 + 111092^2 .

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 20223143305 - 2²³ = 20214754697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20223143305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118959582 + ... + 118959751.

It is an arithmetic number, because the mean of its divisors is an integer number (3211911009).

Almost surely, 2^20223143305 is an apocalyptic number.

It is an amenable number.

20223143305 is a deficient number, since it is larger than the sum of its proper divisors (5472144767).

20223143305 is a wasteful number, since it uses less digits than its factorization.

20223143305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237919355.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20223143305 its reverse (50334132202), we get a palindrome (70557275507).

The spelling of 20223143305 in words is "twenty billion, two hundred twenty-three million, one hundred forty-three thousand, three hundred five".