189320427123 has 8 divisors (see below), whose sum is σ = 253154693568. Its totient is φ = 125849889384.

The previous prime is 189320427103. The next prime is 189320427151. The reversal of 189320427123 is 321724023981.

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

It is not a de Polignac number, because 189320427123 - 2²⁹ = 188783556211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189320427103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90930961 + ... + 90933042.

It is an arithmetic number, because the mean of its divisors is an integer number (31644336696).

Almost surely, 2^189320427123 is an apocalyptic number.

189320427123 is a deficient number, since it is larger than the sum of its proper divisors (63834266445).

189320427123 is a wasteful number, since it uses less digits than its factorization.

189320427123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181864353.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 189320427123 in words is "one hundred eighty-nine billion, three hundred twenty million, four hundred twenty-seven thousand, one hundred twenty-three".