203012220203 has 4 divisors (see below), whose sum is σ = 218628544848. Its totient is φ = 187395895560.

The previous prime is 203012220143. The next prime is 203012220217. The reversal of 203012220203 is 302022210302.

203012220203 is digitally balanced in base 2, 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 is a cyclic number.

It is not a de Polignac number, because 203012220203 - 2¹⁴ = 203012203819 is a prime.

It is a super-2 number, since 2×203012220203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203012220403) 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 3 ways as a sum of consecutive naturals, for example, 7808162303 + ... + 7808162328.

It is an arithmetic number, because the mean of its divisors is an integer number (54657136212).

Almost surely, 2^203012220203 is an apocalyptic number.

203012220203 is a deficient number, since it is larger than the sum of its proper divisors (15616324645).

203012220203 is a wasteful number, since it uses less digits than its factorization.

203012220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15616324644.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203012220203 its reverse (302022210302), we get a palindrome (505034430505).

Subtracting 203012220203 from its reverse (302022210302), we obtain a palindrome (99009990099).

The spelling of 203012220203 in words is "two hundred three billion, twelve million, two hundred twenty thousand, two hundred three".