201543343401 has 8 divisors (see below), whose sum is σ = 272735270944. Its totient is φ = 132356822400.

The previous prime is 201543343303. The next prime is 201543343409. The reversal of 201543343401 is 104343345102.

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

It is not a de Polignac number, because 201543343401 - 2¹³ = 201543335209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201543343409) 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, 501351400 + ... + 501351801.

It is an arithmetic number, because the mean of its divisors is an integer number (34091908868).

Almost surely, 2^201543343401 is an apocalyptic number.

It is an amenable number.

201543343401 is a deficient number, since it is larger than the sum of its proper divisors (71191927543).

201543343401 is a wasteful number, since it uses less digits than its factorization.

201543343401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002703271.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 201543343401 its reverse (104343345102), we get a palindrome (305886688503).

The spelling of 201543343401 in words is "two hundred one billion, five hundred forty-three million, three hundred forty-three thousand, four hundred one".