243231331001 has 8 divisors (see below), whose sum is σ = 257635959840. Its totient is φ = 228837469248.

The previous prime is 243231330997. The next prime is 243231331061. The reversal of 243231331001 is 100133132342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243231331001 - 2² = 243231330997 is a prime.

It is a super-2 number, since 2×243231331001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243231331061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2645231 + ... + 2735636.

It is an arithmetic number, because the mean of its divisors is an integer number (32204494980).

Almost surely, 2^243231331001 is an apocalyptic number.

It is an amenable number.

243231331001 is a deficient number, since it is larger than the sum of its proper divisors (14404628839).

243231331001 is a wasteful number, since it uses less digits than its factorization.

243231331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383543.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 243231331001 its reverse (100133132342), we get a palindrome (343364463343).

It can be divided in two parts, 24323 and 1331001, that multiplied together give a palindrome (32373937323).

The spelling of 243231331001 in words is "two hundred forty-three billion, two hundred thirty-one million, three hundred thirty-one thousand, one".