189910320103 has 8 divisors (see below), whose sum is σ = 217055968640. Its totient is φ = 162768572280.

The previous prime is 189910320073. The next prime is 189910320113. The reversal of 189910320103 is 301023019981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189910320103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189910320113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870093 + ... + 1066246.

It is an arithmetic number, because the mean of its divisors is an integer number (27131996080).

Almost surely, 2^189910320103 is an apocalyptic number.

189910320103 is a deficient number, since it is larger than the sum of its proper divisors (27145648537).

189910320103 is a wasteful number, since it uses less digits than its factorization.

189910320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950357.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 189910320103 in words is "one hundred eighty-nine billion, nine hundred ten million, three hundred twenty thousand, one hundred three".