203122003122 has 24 divisors (see below), whose sum is σ = 445042594620. Its totient is φ = 66946577280.

The previous prime is 203122003121. The next prime is 203122003129. The reversal of 203122003122 is 221300221302.

203122003122 is a `hidden beast` number, since 20 + 312 + 20 + 0 + 312 + 2 = 666.

203122003122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 184393806921 + 18728196201 = 429411^2 + 136851^2 .

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 = 203122003095 and 203122003104.

It is not an unprimeable number, because it can be changed into a prime (203122003121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63394779 + ... + 63397982.

Almost surely, 2^203122003122 is an apocalyptic number.

203122003122 is an abundant number, since it is smaller than the sum of its proper divisors (241920591498).

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

203122003122 is a wasteful number, since it uses less digits than its factorization.

203122003122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126792858 (or 126792855 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 203122003122 its reverse (221300221302), we get a palindrome (424422224424).

The spelling of 203122003122 in words is "two hundred three billion, one hundred twenty-two million, three thousand, one hundred twenty-two".