203022423403 has 4 divisors (see below), whose sum is σ = 203078557080. Its totient is φ = 202966289728.

The previous prime is 203022423397. The next prime is 203022423419. The reversal of 203022423403 is 304324220302.

203022423403 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 a de Polignac number, because none of the positive numbers 2^k-203022423403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203022421403) 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, 28061413 + ... + 28068646.

It is an arithmetic number, because the mean of its divisors is an integer number (50769639270).

Almost surely, 2^203022423403 is an apocalyptic number.

203022423403 is a deficient number, since it is larger than the sum of its proper divisors (56133677).

203022423403 is an equidigital number, since it uses as much as digits as its factorization.

203022423403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56133676.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 203022423403 its reverse (304324220302), we get a palindrome (507346643705).

The spelling of 203022423403 in words is "two hundred three billion, twenty-two million, four hundred twenty-three thousand, four hundred three".