203211421004 has 6 divisors (see below), whose sum is σ = 355619986764. Its totient is φ = 101605710500.

The previous prime is 203211420947. The next prime is 203211421057. The reversal of 203211421004 is 400124112302.

203211421004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25401427622 + ... + 25401427629.

It is an arithmetic number, because the mean of its divisors is an integer number (59269997794).

Almost surely, 2^203211421004 is an apocalyptic number.

It is an amenable number.

203211421004 is a deficient number, since it is larger than the sum of its proper divisors (152408565760).

203211421004 is a wasteful number, since it uses less digits than its factorization.

203211421004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50802855255 (or 50802855253 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 203211421004 its reverse (400124112302), we get a palindrome (603335533306).

The spelling of 203211421004 in words is "two hundred three billion, two hundred eleven million, four hundred twenty-one thousand, four".