320001323243 has 16 divisors (see below), whose sum is σ = 374672980416. Its totient is φ = 267570293760.

The previous prime is 320001323237. The next prime is 320001323269. The reversal of 320001323243 is 342323100023.

It is not a de Polignac number, because 320001323243 - 2³⁴ = 302821454059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320001322243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3156755 + ... + 3256547.

It is an arithmetic number, because the mean of its divisors is an integer number (23417061276).

Almost surely, 2^320001323243 is an apocalyptic number.

320001323243 is a deficient number, since it is larger than the sum of its proper divisors (54671657173).

320001323243 is a wasteful number, since it uses less digits than its factorization.

320001323243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111014.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 320001323243 its reverse (342323100023), we get a palindrome (662324423266).

The spelling of 320001323243 in words is "three hundred twenty billion, one million, three hundred twenty-three thousand, two hundred forty-three".