544421340103 has 4 divisors (see below), whose sum is σ = 561983318848. Its totient is φ = 526859361360.

The previous prime is 544421340077. The next prime is 544421340109. The reversal of 544421340103 is 301043124445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544421340103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 17561978713 = 544421340103 / (5 + 4 + 4 + 4 + 2 + 1 + 3 + 4 + 0 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544421340109) 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, 8780989326 + ... + 8780989387.

It is an arithmetic number, because the mean of its divisors is an integer number (140495829712).

Almost surely, 2^544421340103 is an apocalyptic number.

544421340103 is a deficient number, since it is larger than the sum of its proper divisors (17561978745).

544421340103 is a wasteful number, since it uses less digits than its factorization.

544421340103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17561978744.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 544421340103 its reverse (301043124445), we get a palindrome (845464464548).

The spelling of 544421340103 in words is "five hundred forty-four billion, four hundred twenty-one million, three hundred forty thousand, one hundred three".