201324323420 has 96 divisors (see below), whose sum is σ = 497560625856. Its totient is φ = 67602329600.

The previous prime is 201324323401. The next prime is 201324323441. The reversal of 201324323420 is 24323423102.

It is a self number, because there is not a number n which added to its sum of digits gives 201324323420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309611 + ... + 706050.

It is an arithmetic number, because the mean of its divisors is an integer number (5182923186).

Almost surely, 2^201324323420 is an apocalyptic number.

201324323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201324323420 is an abundant number, since it is smaller than the sum of its proper divisors (296236302436).

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

201324323420 is a wasteful number, since it uses less digits than its factorization.

201324323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015751 (or 1015749 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 201324323420 its reverse (24323423102), we get a palindrome (225647746522).

The spelling of 201324323420 in words is "two hundred one billion, three hundred twenty-four million, three hundred twenty-three thousand, four hundred twenty".