101200243189 has 2 divisors, whose sum is σ = 101200243190. Its totient is φ = 101200243188.

The previous prime is 101200243171. The next prime is 101200243217. The reversal of 101200243189 is 981342002101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88914294225 + 12285948964 = 298185^2 + 110842^2 .

It is an emirp because it is prime and its reverse (981342002101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101200243189 - 2¹¹ = 101200241141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101200243189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101200243129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600121594 + 50600121595.

It is an arithmetic number, because the mean of its divisors is an integer number (50600121595).

Almost surely, 2^101200243189 is an apocalyptic number.

It is an amenable number.

101200243189 is a deficient number, since it is larger than the sum of its proper divisors (1).

101200243189 is an equidigital number, since it uses as much as digits as its factorization.

101200243189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 101200243189 in words is "one hundred one billion, two hundred million, two hundred forty-three thousand, one hundred eighty-nine".