104243434243 has 4 divisors (see below), whose sum is σ = 112262159968. Its totient is φ = 96224708520.

The previous prime is 104243434111. The next prime is 104243434277. The reversal of 104243434243 is 342434342401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342434342401 = 179 ⋅1913041019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104243434243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104243434199 and 104243434208.

It is not an unprimeable number, because it can be changed into a prime (104243434343) 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, 4009362843 + ... + 4009362868.

It is an arithmetic number, because the mean of its divisors is an integer number (28065539992).

Almost surely, 2^104243434243 is an apocalyptic number.

104243434243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

104243434243 is a deficient number, since it is larger than the sum of its proper divisors (8018725725).

104243434243 is an equidigital number, since it uses as much as digits as its factorization.

104243434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018725724.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 104243434243 its reverse (342434342401), we get a palindrome (446677776644).

The spelling of 104243434243 in words is "one hundred four billion, two hundred forty-three million, four hundred thirty-four thousand, two hundred forty-three".