100200123231979 has 2 divisors, whose sum is σ = 100200123231980. Its totient is φ = 100200123231978.

The previous prime is 100200123231973. The next prime is 100200123232007. The reversal of 100200123231979 is 979132321002001.

It is a weak prime.

It is an emirp because it is prime and its reverse (979132321002001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100200123231979 - 2⁵ = 100200123231947 is a prime.

It is not a weakly prime, because it can be changed into another prime (100200123231973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100061615989 + 50100061615990.

It is an arithmetic number, because the mean of its divisors is an integer number (50100061615990).

Almost surely, 2^{100200123231979} is an apocalyptic number.

100200123231979 is a deficient number, since it is larger than the sum of its proper divisors (1).

100200123231979 is an equidigital number, since it uses as much as digits as its factorization.

100200123231979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 100200123231979 in words is "one hundred trillion, two hundred billion, one hundred twenty-three million, two hundred thirty-one thousand, nine hundred seventy-nine".