203021303122 has 32 divisors (see below), whose sum is σ = 340392913344. Its totient is φ = 90016920000.

The previous prime is 203021303099. The next prime is 203021303123. The reversal of 203021303122 is 221303120302.

It is a self number, because there is not a number n which added to its sum of digits gives 203021303122.

It is not an unprimeable number, because it can be changed into a prime (203021303123) 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, 574372 + ... + 857872.

It is an arithmetic number, because the mean of its divisors is an integer number (10637278542).

Almost surely, 2^203021303122 is an apocalyptic number.

203021303122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203021303122 is a deficient number, since it is larger than the sum of its proper divisors (137371610222).

203021303122 is a wasteful number, since it uses less digits than its factorization.

203021303122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284314.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203021303122 its reverse (221303120302), we get a palindrome (424324423424).

The spelling of 203021303122 in words is "two hundred three billion, twenty-one million, three hundred three thousand, one hundred twenty-two".