201320201424 has 40 divisors (see below), whose sum is σ = 520093865632. Its totient is φ = 67104581760.

The previous prime is 201320201389. The next prime is 201320201429. The reversal of 201320201424 is 424102023102.

It is a self number, because there is not a number n which added to its sum of digits gives 201320201424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201320201429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315214 + ... + 2400594.

Almost surely, 2^201320201424 is an apocalyptic number.

201320201424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201320201424 is an abundant number, since it is smaller than the sum of its proper divisors (318773664208).

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

201320201424 is a wasteful number, since it uses less digits than its factorization.

201320201424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134515 (or 134509 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 201320201424 its reverse (424102023102), we get a palindrome (625422224526).

The spelling of 201320201424 in words is "two hundred one billion, three hundred twenty million, two hundred one thousand, four hundred twenty-four".