201211202544423 has 8 divisors (see below), whose sum is σ = 268281728257536. Its totient is φ = 134140739263800.

The previous prime is 201211202544299. The next prime is 201211202544449. The reversal of 201211202544423 is 324445202112102.

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

It is not a de Polignac number, because 201211202544423 - 2⁸ = 201211202544167 is a prime.

It is a super-3 number, since 3×201211202544423³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211202544223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7484023 + ... + 21411048.

It is an arithmetic number, because the mean of its divisors is an integer number (33535216032192).

Almost surely, 2^{201211202544423} is an apocalyptic number.

201211202544423 is a deficient number, since it is larger than the sum of its proper divisors (67070525713113).

201211202544423 is a wasteful number, since it uses less digits than its factorization.

201211202544423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31216245.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 201211202544423 its reverse (324445202112102), we get a palindrome (525656404656525).

The spelling of 201211202544423 in words is "two hundred one trillion, two hundred eleven billion, two hundred two million, five hundred forty-four thousand, four hundred twenty-three".