101309998123 has 2 divisors, whose sum is σ = 101309998124. Its totient is φ = 101309998122.

The previous prime is 101309998103. The next prime is 101309998129. The reversal of 101309998123 is 321899903101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101309998123 - 2⁵ = 101309998091 is a prime.

It is not a weakly prime, because it can be changed into another prime (101309998129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50654999061 + 50654999062.

It is an arithmetic number, because the mean of its divisors is an integer number (50654999062).

Almost surely, 2^101309998123 is an apocalyptic number.

101309998123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101309998123 is an equidigital number, since it uses as much as digits as its factorization.

101309998123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 101309998123 in words is "one hundred one billion, three hundred nine million, nine hundred ninety-eight thousand, one hundred twenty-three".