13223123044 has 24 divisors (see below), whose sum is σ = 23463910008. Its totient is φ = 6519744000.

The previous prime is 13223123029. The next prime is 13223123047. The reversal of 13223123044 is 44032132231.

It can be written as a sum of positive squares in 4 ways, for example, as 735060544 + 12488062500 = 27112^2 + 111750^2 .

It is not an unprimeable number, because it can be changed into a prime (13223123047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14794 + ... + 163294.

It is an arithmetic number, because the mean of its divisors is an integer number (977662917).

Almost surely, 2^13223123044 is an apocalyptic number.

It is an amenable number.

13223123044 is a deficient number, since it is larger than the sum of its proper divisors (10240786964).

13223123044 is a wasteful number, since it uses less digits than its factorization.

13223123044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148815 (or 148813 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13223123044 its reverse (44032132231), we get a palindrome (57255255275).

The spelling of 13223123044 in words is "thirteen billion, two hundred twenty-three million, one hundred twenty-three thousand, forty-four".