105103235243 has 2 divisors, whose sum is σ = 105103235244. Its totient is φ = 105103235242.

The previous prime is 105103235219. The next prime is 105103235249. The reversal of 105103235243 is 342532301501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105103235243 - 2²⁰ = 105102186667 is a prime.

It is a super-2 number, since 2×105103235243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105103235249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52551617621 + 52551617622.

It is an arithmetic number, because the mean of its divisors is an integer number (52551617622).

Almost surely, 2^105103235243 is an apocalyptic number.

105103235243 is a deficient number, since it is larger than the sum of its proper divisors (1).

105103235243 is an equidigital number, since it uses as much as digits as its factorization.

105103235243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 105103235243 its reverse (342532301501), we get a palindrome (447635536744).

The spelling of 105103235243 in words is "one hundred five billion, one hundred three million, two hundred thirty-five thousand, two hundred forty-three".