10223320545 has 24 divisors (see below), whose sum is σ = 17743525800. Its totient is φ = 5445328896.

The previous prime is 10223320543. The next prime is 10223320561. The reversal of 10223320545 is 54502332201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 180875601 + 10042444944 = 13449^2 + 100212^2 .

It is not a de Polignac number, because 10223320545 - 2¹ = 10223320543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10223320543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113110 + ... + 182319.

It is an arithmetic number, because the mean of its divisors is an integer number (739313575).

Almost surely, 2^10223320545 is an apocalyptic number.

10223320545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10223320545 is a deficient number, since it is larger than the sum of its proper divisors (7520205255).

10223320545 is a wasteful number, since it uses less digits than its factorization.

10223320545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296209 (or 296206 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 10223320545 its reverse (54502332201), we get a palindrome (64725652746).

The spelling of 10223320545 in words is "ten billion, two hundred twenty-three million, three hundred twenty thousand, five hundred forty-five".