321453043 has 4 divisors (see below), whose sum is σ = 331822528. Its totient is φ = 311083560.

The previous prime is 321452969. The next prime is 321453071. The reversal of 321453043 is 340354123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321453043 - 2¹⁷ = 321321971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321452999 and 321453017.

It is not an unprimeable number, because it can be changed into a prime (321453443) 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, 5184696 + ... + 5184757.

It is an arithmetic number, because the mean of its divisors is an integer number (82955632).

Almost surely, 2^321453043 is an apocalyptic number.

321453043 is a deficient number, since it is larger than the sum of its proper divisors (10369485).

321453043 is a wasteful number, since it uses less digits than its factorization.

321453043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369484.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 321453043 is about 17929.1116065465. Note that the first 3 decimals coincide. The cubic root of 321453043 is about 685.0240942028.

The spelling of 321453043 in words is "three hundred twenty-one million, four hundred fifty-three thousand, forty-three".