203123123113 has 8 divisors (see below), whose sum is σ = 204551006400. Its totient is φ = 201696102000.

The previous prime is 203123123089. The next prime is 203123123117. The reversal of 203123123113 is 311321321302.

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

It is a cyclic number.

It is not a de Polignac number, because 203123123113 - 2¹⁷ = 203122992041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203123123117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260988 + ... + 688738.

It is an arithmetic number, because the mean of its divisors is an integer number (25568875800).

Almost surely, 2^203123123113 is an apocalyptic number.

It is an amenable number.

203123123113 is a deficient number, since it is larger than the sum of its proper divisors (1427883287).

203123123113 is a wasteful number, since it uses less digits than its factorization.

203123123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431087.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203123123113 its reverse (311321321302), we get a palindrome (514444444415).

The spelling of 203123123113 in words is "two hundred three billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirteen".