203123124313 has 8 divisors (see below), whose sum is σ = 203403557448. Its totient is φ = 202842756864.

The previous prime is 203123124277. The next prime is 203123124353. The reversal of 203123124313 is 313421321302.

203123124313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31372557129 + 171750567184 = 177123^2 + 414428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203123124313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203123124353) 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 7 ways as a sum of consecutive naturals, for example, 11669745 + ... + 11687137.

It is an arithmetic number, because the mean of its divisors is an integer number (25425444681).

Almost surely, 2^203123124313 is an apocalyptic number.

It is an amenable number.

203123124313 is a deficient number, since it is larger than the sum of its proper divisors (280433135).

203123124313 is a wasteful number, since it uses less digits than its factorization.

203123124313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32843.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203123124313 its reverse (313421321302), we get a palindrome (516544445615).

The spelling of 203123124313 in words is "two hundred three billion, one hundred twenty-three million, one hundred twenty-four thousand, three hundred thirteen".