100121998104059 has 2 divisors, whose sum is σ = 100121998104060. Its totient is φ = 100121998104058.

The previous prime is 100121998104041. The next prime is 100121998104101. The reversal of 100121998104059 is 950401899121001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (950401899121001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121998104059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100121998103998 and 100121998104016.

It is not a weakly prime, because it can be changed into another prime (100121998104659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060999052029 + 50060999052030.

It is an arithmetic number, because the mean of its divisors is an integer number (50060999052030).

Almost surely, 2^{100121998104059} is an apocalyptic number.

100121998104059 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121998104059 is an equidigital number, since it uses as much as digits as its factorization.

100121998104059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 50.

The spelling of 100121998104059 in words is "one hundred trillion, one hundred twenty-one billion, nine hundred ninety-eight million, one hundred four thousand, fifty-nine".