243401032102401 has 6 divisors (see below), whose sum is σ = 351579268592370. Its totient is φ = 162267354734928.

The previous prime is 243401032102339. The next prime is 243401032102429. The reversal of 243401032102401 is 104201230104342.

243401032102401 is a `hidden beast` number, since 2 + 4 + 3 + 40 + 1 + 0 + 3 + 210 + 2 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 241038666176400 + 2362365926001 = 15525420^2 + 1536999^2 .

It is not a de Polignac number, because 243401032102401 - 2⁷ = 243401032102273 is a prime.

It is a super-2 number, since 2×243401032102401² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243401032102451) 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 5 ways as a sum of consecutive naturals, for example, 13522279561236 + ... + 13522279561253.

It is an arithmetic number, because the mean of its divisors is an integer number (58596544765395).

Almost surely, 2^{243401032102401} is an apocalyptic number.

It is an amenable number.

243401032102401 is a deficient number, since it is larger than the sum of its proper divisors (108178236489969).

243401032102401 is a wasteful number, since it uses less digits than its factorization.

243401032102401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27044559122495 (or 27044559122492 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243401032102401 its reverse (104201230104342), we get a palindrome (347602262206743).

The spelling of 243401032102401 in words is "two hundred forty-three trillion, four hundred one billion, thirty-two million, one hundred two thousand, four hundred one".