201525212442323 has 16 divisors (see below), whose sum is σ = 251410932089856. Its totient is φ = 156933433587840.

The previous prime is 201525212442269. The next prime is 201525212442329. The reversal of 201525212442323 is 323244212525102.

It is not a de Polignac number, because 201525212442323 - 2¹⁰ = 201525212441299 is a prime.

It is a super-2 number, since 2×201525212442323² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201525212442329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826539686 + ... + 826783467.

It is an arithmetic number, because the mean of its divisors is an integer number (15713183255616).

Almost surely, 2^{201525212442323} is an apocalyptic number.

201525212442323 is a deficient number, since it is larger than the sum of its proper divisors (49885719647533).

201525212442323 is a wasteful number, since it uses less digits than its factorization.

201525212442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653324754.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 201525212442323 its reverse (323244212525102), we get a palindrome (524769424967425).

The spelling of 201525212442323 in words is "two hundred one trillion, five hundred twenty-five billion, two hundred twelve million, four hundred forty-two thousand, three hundred twenty-three".