201324203142 has 128 divisors (see below), whose sum is σ = 419404677120. Its totient is φ = 64403942400.

The previous prime is 201324203131. The next prime is 201324203161. The reversal of 201324203142 is 241302423102.

It is a happy number.

It is a super-2 number, since 2×201324203142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 864052258 + ... + 864052490.

It is an arithmetic number, because the mean of its divisors is an integer number (3276599040).

Almost surely, 2^201324203142 is an apocalyptic number.

201324203142 is an abundant number, since it is smaller than the sum of its proper divisors (218080473978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201324203142 is a wasteful number, since it uses less digits than its factorization.

201324203142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 201324203142 its reverse (241302423102), we get a palindrome (442626626244).

The spelling of 201324203142 in words is "two hundred one billion, three hundred twenty-four million, two hundred three thousand, one hundred forty-two".