104665321213 has 2 divisors, whose sum is σ = 104665321214. Its totient is φ = 104665321212.

The previous prime is 104665321129. The next prime is 104665321309. The reversal of 104665321213 is 312123566401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80916353764 + 23748967449 = 284458^2 + 154107^2 .

It is a cyclic number.

It is not a de Polignac number, because 104665321213 - 2¹⁷ = 104665190141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104665324213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52332660606 + 52332660607.

It is an arithmetic number, because the mean of its divisors is an integer number (52332660607).

Almost surely, 2^104665321213 is an apocalyptic number.

It is an amenable number.

104665321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

104665321213 is an equidigital number, since it uses as much as digits as its factorization.

104665321213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 104665321213 its reverse (312123566401), we get a palindrome (416788887614).

The spelling of 104665321213 in words is "one hundred four billion, six hundred sixty-five million, three hundred twenty-one thousand, two hundred thirteen".