243144020001 has 8 divisors (see below), whose sum is σ = 329506650304. Its totient is φ = 159438701520.

The previous prime is 243144019981. The next prime is 243144020023. The reversal of 243144020001 is 100020441342.

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

It is not a de Polignac number, because 243144020001 - 2⁵ = 243144019969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243144020001.

It is not an unprimeable number, because it can be changed into a prime (243144027001) 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, 664327741 + ... + 664328106.

It is an arithmetic number, because the mean of its divisors is an integer number (41188331288).

Almost surely, 2^243144020001 is an apocalyptic number.

It is an amenable number.

243144020001 is a deficient number, since it is larger than the sum of its proper divisors (86362630303).

243144020001 is a wasteful number, since it uses less digits than its factorization.

243144020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328655911.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 243144020001 its reverse (100020441342), we get a palindrome (343164461343).

The spelling of 243144020001 in words is "two hundred forty-three billion, one hundred forty-four million, twenty thousand, one".