320144002231 has 4 divisors (see below), whose sum is σ = 320258710864. Its totient is φ = 320029293600.

The previous prime is 320144002183. The next prime is 320144002273. The reversal of 320144002231 is 132200441023.

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 320144002231 - 2¹⁹ = 320143477943 is a prime.

It is a super-3 number, since 3×320144002231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320144002331) 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, 57350130 + ... + 57355711.

It is an arithmetic number, because the mean of its divisors is an integer number (80064677716).

Almost surely, 2^320144002231 is an apocalyptic number.

320144002231 is a deficient number, since it is larger than the sum of its proper divisors (114708633).

320144002231 is a wasteful number, since it uses less digits than its factorization.

320144002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114708632.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 320144002231 its reverse (132200441023), we get a palindrome (452344443254).

The spelling of 320144002231 in words is "three hundred twenty billion, one hundred forty-four million, two thousand, two hundred thirty-one".