320087123 has 12 divisors (see below), whose sum is σ = 339627288. Its totient is φ = 301479360.

The previous prime is 320087071. The next prime is 320087137. The reversal of 320087123 is 321780023.

It is not a de Polignac number, because 320087123 - 2¹⁰ = 320086099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320087092 and 320087101.

It is not an unprimeable number, because it can be changed into a prime (320087143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29840 + ... + 39122.

It is an arithmetic number, because the mean of its divisors is an integer number (28302274).

Almost surely, 2^320087123 is an apocalyptic number.

320087123 is a deficient number, since it is larger than the sum of its proper divisors (19540165).

320087123 is an equidigital number, since it uses as much as digits as its factorization.

320087123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9382 (or 9353 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 320087123 is about 17890.9788161520. The cubic root of 320087123 is about 684.0524473024.

The spelling of 320087123 in words is "three hundred twenty million, eighty-seven thousand, one hundred twenty-three".