104001443391 has 4 divisors (see below), whose sum is σ = 138668591192. Its totient is φ = 69334295592.

The previous prime is 104001443369. The next prime is 104001443407. The reversal of 104001443391 is 193344100401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193344100401 = 3 ⋅64448033467.

It is not a de Polignac number, because 104001443391 - 2¹⁴ = 104001427007 is a prime.

It is a super-2 number, since 2×104001443391² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104001443341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17333573896 + ... + 17333573901.

It is an arithmetic number, because the mean of its divisors is an integer number (34667147798).

Almost surely, 2^104001443391 is an apocalyptic number.

104001443391 is a deficient number, since it is larger than the sum of its proper divisors (34667147801).

104001443391 is an equidigital number, since it uses as much as digits as its factorization.

104001443391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34667147800.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 104001443391 its reverse (193344100401), we get a palindrome (297345543792).

The spelling of 104001443391 in words is "one hundred four billion, one million, four hundred forty-three thousand, three hundred ninety-one".