123384443 has 32 divisors (see below), whose sum is σ = 159860736. Its totient is φ = 92556288.

The previous prime is 123384431. The next prime is 123384479. The reversal of 123384443 is 344483321.

It is a cyclic number.

It is not a de Polignac number, because 123384443 - 2⁶ = 123384379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123384493) 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 31 ways as a sum of consecutive naturals, for example, 349355 + ... + 349707.

It is an arithmetic number, because the mean of its divisors is an integer number (4995648).

Almost surely, 2^123384443 is an apocalyptic number.

123384443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123384443 is a deficient number, since it is larger than the sum of its proper divisors (36476293).

123384443 is a wasteful number, since it uses less digits than its factorization.

123384443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its digits is 27648, while the sum is 32.

The square root of 123384443 is about 11107.8550134578. The cubic root of 123384443 is about 497.8365767002.

The spelling of 123384443 in words is "one hundred twenty-three million, three hundred eighty-four thousand, four hundred forty-three".