100100145103243 has 2 divisors, whose sum is σ = 100100145103244. Its totient is φ = 100100145103242.

The previous prime is 100100145103241. The next prime is 100100145103249. The reversal of 100100145103243 is 342301541001001.

It is a weak prime.

It is an emirp because it is prime and its reverse (342301541001001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100100145103243 - 2¹ = 100100145103241 is a prime.

It is a super-2 number, since 2×100100145103243² (a number of 29 digits) contains 22 as substring.

Together with 100100145103241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100100145103241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050072551621 + 50050072551622.

It is an arithmetic number, because the mean of its divisors is an integer number (50050072551622).

Almost surely, 2^{100100145103243} is an apocalyptic number.

100100145103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

100100145103243 is an equidigital number, since it uses as much as digits as its factorization.

100100145103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 100100145103243 its reverse (342301541001001), we get a palindrome (442401686104244).

The spelling of 100100145103243 in words is "one hundred trillion, one hundred billion, one hundred forty-five million, one hundred three thousand, two hundred forty-three".