320043240231 has 32 divisors (see below), whose sum is σ = 502523239680. Its totient is φ = 178617753600.

The previous prime is 320043240217. The next prime is 320043240239. The reversal of 320043240231 is 132042340023.

It is not a de Polignac number, because 320043240231 - 2¹⁹ = 320042715943 is a prime.

It is a super-2 number, since 2×320043240231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320043240239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710490 + ... + 1069991.

It is an arithmetic number, because the mean of its divisors is an integer number (15703851240).

Almost surely, 2^320043240231 is an apocalyptic number.

320043240231 is a deficient number, since it is larger than the sum of its proper divisors (182479999449).

320043240231 is a wasteful number, since it uses less digits than its factorization.

320043240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780927.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 320043240231 its reverse (132042340023), we get a palindrome (452085580254).

The spelling of 320043240231 in words is "three hundred twenty billion, forty-three million, two hundred forty thousand, two hundred thirty-one".