203423121422 has 16 divisors (see below), whose sum is σ = 324424390752. Its totient is φ = 95331310080.

The previous prime is 203423121413. The next prime is 203423121457. The reversal of 203423121422 is 224121324302.

203423121422 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203423121391 and 203423121400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12404738 + ... + 12421125.

It is an arithmetic number, because the mean of its divisors is an integer number (20276524422).

Almost surely, 2^203423121422 is an apocalyptic number.

203423121422 is a deficient number, since it is larger than the sum of its proper divisors (121001269330).

203423121422 is a wasteful number, since it uses less digits than its factorization.

203423121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24826123.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 203423121422 its reverse (224121324302), we get a palindrome (427544445724).

The spelling of 203423121422 in words is "two hundred three billion, four hundred twenty-three million, one hundred twenty-one thousand, four hundred twenty-two".