201320424 has 32 divisors (see below), whose sum is σ = 559224000. Its totient is φ = 67106736.

The previous prime is 201320389. The next prime is 201320437. The reversal of 201320424 is 424023102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201320397 and 201320406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465804 + ... + 466235.

It is an arithmetic number, because the mean of its divisors is an integer number (17475750).

Almost surely, 2^201320424 is an apocalyptic number.

201320424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201320424 is an abundant number, since it is smaller than the sum of its proper divisors (357903576).

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

201320424 is a wasteful number, since it uses less digits than its factorization.

201320424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932054 (or 932044 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201320424 is about 14188.7428618606. The cubic root of 201320424 is about 586.0877067836.

Adding to 201320424 its reverse (424023102), we get a palindrome (625343526).

The spelling of 201320424 in words is "two hundred one million, three hundred twenty thousand, four hundred twenty-four".