203313121124423 has 4 divisors (see below), whose sum is σ = 208808070344040. Its totient is φ = 197818171904808.

The previous prime is 203313121124303. The next prime is 203313121124447. The reversal of 203313121124423 is 324421121313302.

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 203313121124423 - 2⁸ = 203313121124167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203313121124423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203313121024423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747474609753 + ... + 2747474609826.

It is an arithmetic number, because the mean of its divisors is an integer number (52202017586010).

Almost surely, 2^{203313121124423} is an apocalyptic number.

203313121124423 is a deficient number, since it is larger than the sum of its proper divisors (5494949219617).

203313121124423 is an equidigital number, since it uses as much as digits as its factorization.

203313121124423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494949219616.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 203313121124423 its reverse (324421121313302), we get a palindrome (527734242437725).

The spelling of 203313121124423 in words is "two hundred three trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred twenty-four thousand, four hundred twenty-three".