104311321 has 2 divisors, whose sum is σ = 104311322. Its totient is φ = 104311320.

The previous prime is 104311313. The next prime is 104311331. The reversal of 104311321 is 123113401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73342096 + 30969225 = 8564^2 + 5565^2 .

It is an emirp because it is prime and its reverse (123113401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104311321 - 2³ = 104311313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104311295 and 104311304.

It is not a weakly prime, because it can be changed into another prime (104311301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52155660 + 52155661.

It is an arithmetic number, because the mean of its divisors is an integer number (52155661).

Almost surely, 2^104311321 is an apocalyptic number.

It is an amenable number.

104311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

104311321 is an equidigital number, since it uses as much as digits as its factorization.

104311321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 104311321 is about 10213.2913891654. The cubic root of 104311321 is about 470.7357136030.

Adding to 104311321 its reverse (123113401), we get a palindrome (227424722).

The spelling of 104311321 in words is "one hundred four million, three hundred eleven thousand, three hundred twenty-one".