2104312118189 has 2 divisors, whose sum is σ = 2104312118190. Its totient is φ = 2104312118188.

The previous prime is 2104312118171. The next prime is 2104312118257. The reversal of 2104312118189 is 9818112134012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1399803695689 + 704508422500 = 1183133^2 + 839350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104312118189 - 2⁸ = 2104312117933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104312118089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052156059094 + 1052156059095.

It is an arithmetic number, because the mean of its divisors is an integer number (1052156059095).

Almost surely, 2^{2104312118189} is an apocalyptic number.

It is an amenable number.

2104312118189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104312118189 is an equidigital number, since it uses as much as digits as its factorization.

2104312118189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 2104312118189 in words is "two trillion, one hundred four billion, three hundred twelve million, one hundred eighteen thousand, one hundred eighty-nine".