320335723451 has 4 divisors (see below), whose sum is σ = 321036677352. Its totient is φ = 319634769552.

The previous prime is 320335723417. The next prime is 320335723457. The reversal of 320335723451 is 154327533023.

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 320335723451 - 2⁶ = 320335723387 is a prime.

It is a super-2 number, since 2×320335723451² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320335723457) 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, 350476265 + ... + 350477178.

It is an arithmetic number, because the mean of its divisors is an integer number (80259169338).

Almost surely, 2^320335723451 is an apocalyptic number.

320335723451 is a deficient number, since it is larger than the sum of its proper divisors (700953901).

320335723451 is an equidigital number, since it uses as much as digits as its factorization.

320335723451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700953900.

The product of its (nonzero) digits is 226800, while the sum is 38.

The spelling of 320335723451 in words is "three hundred twenty billion, three hundred thirty-five million, seven hundred twenty-three thousand, four hundred fifty-one".