100243220331187 has 2 divisors, whose sum is σ = 100243220331188. Its totient is φ = 100243220331186.

The previous prime is 100243220331101. The next prime is 100243220331209. The reversal of 100243220331187 is 781133022342001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100243220331187 is a prime.

It is not a weakly prime, because it can be changed into another prime (100243220331587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121610165593 + 50121610165594.

It is an arithmetic number, because the mean of its divisors is an integer number (50121610165594).

Almost surely, 2^{100243220331187} is an apocalyptic number.

100243220331187 is a deficient number, since it is larger than the sum of its proper divisors (1).

100243220331187 is an equidigital number, since it uses as much as digits as its factorization.

100243220331187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 100243220331187 its reverse (781133022342001), we get a palindrome (881376242673188).

The spelling of 100243220331187 in words is "one hundred trillion, two hundred forty-three billion, two hundred twenty million, three hundred thirty-one thousand, one hundred eighty-seven".