201102520323 has 16 divisors (see below), whose sum is σ = 286836348960. Its totient is φ = 124881125376.

The previous prime is 201102520309. The next prime is 201102520327. The reversal of 201102520323 is 323025201102.

It is not a de Polignac number, because 201102520323 - 2⁵ = 201102520291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201102520323.

It is not an unprimeable number, because it can be changed into a prime (201102520327) 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 15 ways as a sum of consecutive naturals, for example, 20320758 + ... + 20330651.

It is an arithmetic number, because the mean of its divisors is an integer number (17927271810).

Almost surely, 2^201102520323 is an apocalyptic number.

201102520323 is a deficient number, since it is larger than the sum of its proper divisors (85733828637).

201102520323 is a wasteful number, since it uses less digits than its factorization.

201102520323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40651526.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 201102520323 its reverse (323025201102), we get a palindrome (524127721425).

The spelling of 201102520323 in words is "two hundred one billion, one hundred two million, five hundred twenty thousand, three hundred twenty-three".