320432233431 has 4 divisors (see below), whose sum is σ = 427242977912. Its totient is φ = 213621488952.

The previous prime is 320432233427. The next prime is 320432233493. The reversal of 320432233431 is 134332234023.

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

It is not a de Polignac number, because 320432233431 - 2² = 320432233427 is a prime.

It is a super-2 number, since 2×320432233431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320432233831) 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, 53405372236 + ... + 53405372241.

It is an arithmetic number, because the mean of its divisors is an integer number (106810744478).

Almost surely, 2^320432233431 is an apocalyptic number.

320432233431 is a deficient number, since it is larger than the sum of its proper divisors (106810744481).

320432233431 is a wasteful number, since it uses less digits than its factorization.

320432233431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106810744480.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 320432233431 its reverse (134332234023), we get a palindrome (454764467454).

The spelling of 320432233431 in words is "three hundred twenty billion, four hundred thirty-two million, two hundred thirty-three thousand, four hundred thirty-one".