103818823843 has 6 divisors (see below), whose sum is σ = 120768835956. Its totient is φ = 88987563252.

The previous prime is 103818823817. The next prime is 103818823853. The reversal of 103818823843 is 348328818301.

It is not a de Polignac number, because 103818823843 - 2¹⁷ = 103818692771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 2118751507 = 103818823843 / (1 + 0 + 3 + 8 + 1 + 8 + 8 + 2 + 3 + 8 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103818823853) 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, 1059375705 + ... + 1059375802.

It is an arithmetic number, because the mean of its divisors is an integer number (20128139326).

Almost surely, 2^103818823843 is an apocalyptic number.

103818823843 is a deficient number, since it is larger than the sum of its proper divisors (16950012113).

103818823843 is an equidigital number, since it uses as much as digits as its factorization.

103818823843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118751521 (or 2118751514 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 103818823843 in words is "one hundred three billion, eight hundred eighteen million, eight hundred twenty-three thousand, eight hundred forty-three".