103240644265 has 24 divisors (see below), whose sum is σ = 137169353160. Its totient is φ = 74535985920.

The previous prime is 103240644263. The next prime is 103240644281. The reversal of 103240644265 is 562446042301.

It can be written as a sum of positive squares in 4 ways, for example, as 3045604969 + 100195039296 = 55187^2 + 316536^2 .

It is not a de Polignac number, because 103240644265 - 2¹ = 103240644263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103240644263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 539910 + ... + 705679.

It is an arithmetic number, because the mean of its divisors is an integer number (5715389715).

Almost surely, 2^103240644265 is an apocalyptic number.

It is an amenable number.

103240644265 is a deficient number, since it is larger than the sum of its proper divisors (33928708895).

103240644265 is a wasteful number, since it uses less digits than its factorization.

103240644265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245753 (or 1245742 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 103240644265 its reverse (562446042301), we get a palindrome (665686686566).

The spelling of 103240644265 in words is "one hundred three billion, two hundred forty million, six hundred forty-four thousand, two hundred sixty-five".