100100000123 has 2 divisors, whose sum is σ = 100100000124. Its totient is φ = 100100000122.

The previous prime is 100100000053. The next prime is 100100000129. The reversal of 100100000123 is 321000001001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100100000123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100100000123.

It is not a weakly prime, because it can be changed into another prime (100100000129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050000061 + 50050000062.

It is an arithmetic number, because the mean of its divisors is an integer number (50050000062).

Almost surely, 2^100100000123 is an apocalyptic number.

100100000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

100100000123 is an equidigital number, since it uses as much as digits as its factorization.

100100000123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 100100000123 its reverse (321000001001), we get a palindrome (421100001124).

The spelling of 100100000123 in words is "one hundred billion, one hundred million, one hundred twenty-three", and thus it is an aban number.