104665321243 has 16 divisors (see below), whose sum is σ = 124899148800. Its totient is φ = 85756958496.

The previous prime is 104665321213. The next prime is 104665321309. The reversal of 104665321243 is 342123566401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104665321243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104665321213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39546 + ... + 459232.

It is an arithmetic number, because the mean of its divisors is an integer number (7806196800).

Almost surely, 2^104665321243 is an apocalyptic number.

104665321243 is a deficient number, since it is larger than the sum of its proper divisors (20233827557).

104665321243 is a wasteful number, since it uses less digits than its factorization.

104665321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421266.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 104665321243 its reverse (342123566401), we get a palindrome (446788887644).

The spelling of 104665321243 in words is "one hundred four billion, six hundred sixty-five million, three hundred twenty-one thousand, two hundred forty-three".