23543144601337 has 8 divisors (see below), whose sum is σ = 24131714747112. Its totient is φ = 22968921495040.

The previous prime is 23543144601293. The next prime is 23543144601343. The reversal of 23543144601337 is 73310644134532.

It can be written as a sum of positive squares in 4 ways, for example, as 19281021512256 + 4262123089081 = 4391016^2 + 2064491^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23543144601337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23543144601637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170729128 + ... + 170866969.

It is an arithmetic number, because the mean of its divisors is an integer number (3016464343389).

Almost surely, 2^{23543144601337} is an apocalyptic number.

It is an amenable number.

23543144601337 is a deficient number, since it is larger than the sum of its proper divisors (588570145775).

23543144601337 is an frugal number, since it uses more digits than its factorization.

23543144601337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341596220 (or 341596138 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 46.

Adding to 23543144601337 its reverse (73310644134532), we get a palindrome (96853788735869).

The spelling of 23543144601337 in words is "twenty-three trillion, five hundred forty-three billion, one hundred forty-four million, six hundred one thousand, three hundred thirty-seven".