203223012 has 24 divisors (see below), whose sum is σ = 499144800. Its totient is φ = 64175616.

The previous prime is 203222977. The next prime is 203223023. The reversal of 203223012 is 210322302.

It is a junction number, because it is equal to n+sod(n) for n = 203222982 and 203223000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445437 + ... + 445892.

It is an arithmetic number, because the mean of its divisors is an integer number (20797700).

Almost surely, 2^203223012 is an apocalyptic number.

It is an amenable number.

203223012 is an abundant number, since it is smaller than the sum of its proper divisors (295921788).

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

203223012 is a wasteful number, since it uses less digits than its factorization.

203223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891355 (or 891353 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 203223012 is about 14255.6308874774. The cubic root of 203223012 is about 587.9282040156.

Adding to 203223012 its reverse (210322302), we get a palindrome (413545314).

The spelling of 203223012 in words is "two hundred three million, two hundred twenty-three thousand, twelve".