201503020422 has 128 divisors (see below), whose sum is σ = 460033136640. Its totient is φ = 58308848640.

The previous prime is 201503020391. The next prime is 201503020463. The reversal of 201503020422 is 224020305102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22844329 + ... + 22853147.

It is an arithmetic number, because the mean of its divisors is an integer number (3594008880).

Almost surely, 2^201503020422 is an apocalyptic number.

201503020422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201503020422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230016568320).

201503020422 is an abundant number, since it is smaller than the sum of its proper divisors (258530116218).

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

201503020422 is a wasteful number, since it uses less digits than its factorization.

201503020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 201503020422 its reverse (224020305102), we get a palindrome (425523325524).

The spelling of 201503020422 in words is "two hundred one billion, five hundred three million, twenty thousand, four hundred twenty-two".