104043135321 has 6 divisors (see below), whose sum is σ = 150284528810. Its totient is φ = 69362090208.

The previous prime is 104043135311. The next prime is 104043135331. The reversal of 104043135321 is 123531340401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104043135311) and next prime (104043135331).

It can be written as a sum of positive squares in only one way, i.e., 54739153296 + 49303982025 = 233964^2 + 222045^2 .

It is not a de Polignac number, because 104043135321 - 2⁹ = 104043134809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104043135311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5780174176 + ... + 5780174193.

Almost surely, 2^104043135321 is an apocalyptic number.

It is an amenable number.

104043135321 is a deficient number, since it is larger than the sum of its proper divisors (46241393489).

104043135321 is a wasteful number, since it uses less digits than its factorization.

104043135321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560348375 (or 11560348372 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 104043135321 its reverse (123531340401), we get a palindrome (227574475722).

The spelling of 104043135321 in words is "one hundred four billion, forty-three million, one hundred thirty-five thousand, three hundred twenty-one".