100118123243 has 2 divisors, whose sum is σ = 100118123244. Its totient is φ = 100118123242.

The previous prime is 100118123201. The next prime is 100118123269. The reversal of 100118123243 is 342321811001.

It is an a-pointer prime, because the next prime (100118123269) can be obtained adding 100118123243 to its sum of digits (26).

It is a strong prime.

It is an emirp because it is prime and its reverse (342321811001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100118123243 - 2¹² = 100118119147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (100118122243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50059061621 + 50059061622.

It is an arithmetic number, because the mean of its divisors is an integer number (50059061622).

Almost surely, 2^100118123243 is an apocalyptic number.

100118123243 is a deficient number, since it is larger than the sum of its proper divisors (1).

100118123243 is an equidigital number, since it uses as much as digits as its factorization.

100118123243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 100118123243 its reverse (342321811001), we get a palindrome (442439934244).

The spelling of 100118123243 in words is "one hundred billion, one hundred eighteen million, one hundred twenty-three thousand, two hundred forty-three".