320231541 has 16 divisors (see below), whose sum is σ = 488277504. Its totient is φ = 182874864.

The previous prime is 320231531. The next prime is 320231557. The reversal of 320231541 is 145132023.

It is not a de Polignac number, because 320231541 - 2¹³ = 320223349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320231531) 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, 38806 + ... + 46328.

It is an arithmetic number, because the mean of its divisors is an integer number (30517344).

Almost surely, 2^320231541 is an apocalyptic number.

It is an amenable number.

320231541 is a deficient number, since it is larger than the sum of its proper divisors (168045963).

320231541 is a wasteful number, since it uses less digits than its factorization.

320231541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 320231541 is about 17895.0144174292. The cubic root of 320231541 is about 684.1553095396.

Adding to 320231541 its reverse (145132023), we get a palindrome (465363564).

It can be divided in two parts, 3202 and 31541, that added together give a palindrome (34743).

The spelling of 320231541 in words is "three hundred twenty million, two hundred thirty-one thousand, five hundred forty-one".