203123321203113 has 24 divisors (see below), whose sum is σ = 293936406140520. Its totient is φ = 135168202414080.

The previous prime is 203123321203109. The next prime is 203123321203123. The reversal of 203123321203113 is 311302123321302.

203123321203113 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 3 + 321 + 20 + 311 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 100537761029904 + 102585560173209 = 10026852^2 + 10128453^2 .

It is not a de Polignac number, because 203123321203113 - 2² = 203123321203109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203123321203123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35378133 + ... + 40716813.

It is an arithmetic number, because the mean of its divisors is an integer number (12247350255855).

Almost surely, 2^{203123321203113} is an apocalyptic number.

It is an amenable number.

203123321203113 is a deficient number, since it is larger than the sum of its proper divisors (90813084937407).

203123321203113 is a wasteful number, since it uses less digits than its factorization.

203123321203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346409 (or 5346406 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 203123321203113 its reverse (311302123321302), we get a palindrome (514425444524415).

The spelling of 203123321203113 in words is "two hundred three trillion, one hundred twenty-three billion, three hundred twenty-one million, two hundred three thousand, one hundred thirteen".