100084821231917 has 2 divisors, whose sum is σ = 100084821231918. Its totient is φ = 100084821231916.

The previous prime is 100084821231911. The next prime is 100084821231943. The reversal of 100084821231917 is 719132128480001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65775522464521 + 34309298767396 = 8110211^2 + 5857414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100084821231917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100084821231911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50042410615958 + 50042410615959.

It is an arithmetic number, because the mean of its divisors is an integer number (50042410615959).

Almost surely, 2^{100084821231917} is an apocalyptic number.

It is an amenable number.

100084821231917 is a deficient number, since it is larger than the sum of its proper divisors (1).

100084821231917 is an equidigital number, since it uses as much as digits as its factorization.

100084821231917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 100084821231917 in words is "one hundred trillion, eighty-four billion, eight hundred twenty-one million, two hundred thirty-one thousand, nine hundred seventeen".