243203401123301 has 16 divisors (see below), whose sum is σ = 248419334217600. Its totient is φ = 238034286135360.

The previous prime is 243203401123273. The next prime is 243203401123303. The reversal of 243203401123301 is 103321104302342.

It is a cyclic number.

It is not a de Polignac number, because 243203401123301 - 2¹⁰ = 243203401122277 is a prime.

It is a super-2 number, since 2×243203401123301² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243203401123303) 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 15 ways as a sum of consecutive naturals, for example, 190800071 + ... + 192070491.

It is an arithmetic number, because the mean of its divisors is an integer number (15526208388600).

Almost surely, 2^{243203401123301} is an apocalyptic number.

It is an amenable number.

243203401123301 is a deficient number, since it is larger than the sum of its proper divisors (5215933094299).

243203401123301 is a wasteful number, since it uses less digits than its factorization.

243203401123301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288844.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 243203401123301 its reverse (103321104302342), we get a palindrome (346524505425643).

The spelling of 243203401123301 in words is "two hundred forty-three trillion, two hundred three billion, four hundred one million, one hundred twenty-three thousand, three hundred one".