321493123 has 4 divisors (see below), whose sum is σ = 367420720. Its totient is φ = 275565528.

The previous prime is 321493121. The next prime is 321493169. The reversal of 321493123 is 321394123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321394123 = 9091 ⋅35353.

It is not a de Polignac number, because 321493123 - 2¹ = 321493121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321493091 and 321493100.

It is not an unprimeable number, because it can be changed into a prime (321493121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22963788 + ... + 22963801.

It is an arithmetic number, because the mean of its divisors is an integer number (91855180).

Almost surely, 2^321493123 is an apocalyptic number.

321493123 is a deficient number, since it is larger than the sum of its proper divisors (45927597).

321493123 is an equidigital number, since it uses as much as digits as its factorization.

321493123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45927596.

The product of its digits is 3888, while the sum is 28.

The square root of 321493123 is about 17930.2293069553. The cubic root of 321493123 is about 685.0525634980.

The spelling of 321493123 in words is "three hundred twenty-one million, four hundred ninety-three thousand, one hundred twenty-three".