203450312122 has 4 divisors (see below), whose sum is σ = 305175468186. Its totient is φ = 101725156060.

The previous prime is 203450312119. The next prime is 203450312137. The reversal of 203450312122 is 221213054302.

203450312122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147693407481 + 55756904641 = 384309^2 + 236129^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50862578029 + ... + 50862578032.

Almost surely, 2^203450312122 is an apocalyptic number.

203450312122 is a deficient number, since it is larger than the sum of its proper divisors (101725156064).

203450312122 is a wasteful number, since it uses less digits than its factorization.

203450312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101725156063.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 203450312122 its reverse (221213054302), we get a palindrome (424663366424).

The spelling of 203450312122 in words is "two hundred three billion, four hundred fifty million, three hundred twelve thousand, one hundred twenty-two".