189408271103 has 2 divisors, whose sum is σ = 189408271104. Its totient is φ = 189408271102.

The previous prime is 189408271027. The next prime is 189408271127. The reversal of 189408271103 is 301172804981.

It is a strong prime.

It is an emirp because it is prime and its reverse (301172804981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189408271103 - 2²⁶ = 189341162239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189408271193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94704135551 + 94704135552.

It is an arithmetic number, because the mean of its divisors is an integer number (94704135552).

Almost surely, 2^189408271103 is an apocalyptic number.

189408271103 is a deficient number, since it is larger than the sum of its proper divisors (1).

189408271103 is an equidigital number, since it uses as much as digits as its factorization.

189408271103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 189408271103 in words is "one hundred eighty-nine billion, four hundred eight million, two hundred seventy-one thousand, one hundred three".