201320530420 has 48 divisors (see below), whose sum is σ = 448631809920. Its totient is φ = 75721433216.

The previous prime is 201320530409. The next prime is 201320530423. The reversal of 201320530420 is 24035023102.

It is a junction number, because it is equal to n+sod(n) for n = 201320530391 and 201320530400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201320530423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3681787 + ... + 3736066.

It is an arithmetic number, because the mean of its divisors is an integer number (9346496040).

Almost surely, 2^201320530420 is an apocalyptic number.

201320530420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201320530420 is an abundant number, since it is smaller than the sum of its proper divisors (247311279500).

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

201320530420 is a wasteful number, since it uses less digits than its factorization.

201320530420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417944 (or 7417942 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 201320530420 its reverse (24035023102), we get a palindrome (225355553522).

The spelling of 201320530420 in words is "two hundred one billion, three hundred twenty million, five hundred thirty thousand, four hundred twenty".