104421013 has 2 divisors, whose sum is σ = 104421014. Its totient is φ = 104421012.

The previous prime is 104421011. The next prime is 104421043. The reversal of 104421013 is 310124401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100761444 + 3659569 = 10038^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 104421013 - 2¹ = 104421011 is a prime.

Together with 104421011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104421011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52210506 + 52210507.

It is an arithmetic number, because the mean of its divisors is an integer number (52210507).

Almost surely, 2^104421013 is an apocalyptic number.

It is an amenable number.

104421013 is a deficient number, since it is larger than the sum of its proper divisors (1).

104421013 is an equidigital number, since it uses as much as digits as its factorization.

104421013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 104421013 is about 10218.6600393594. The cubic root of 104421013 is about 470.9006616711.

Adding to 104421013 its reverse (310124401), we get a palindrome (414545414).

The spelling of 104421013 in words is "one hundred four million, four hundred twenty-one thousand, thirteen".