203133201123 has 16 divisors (see below), whose sum is σ = 272317181696. Its totient is φ = 134686571040.

The previous prime is 203133201121. The next prime is 203133201133. The reversal of 203133201123 is 321102331302.

It is not a de Polignac number, because 203133201123 - 2¹ = 203133201121 is a prime.

It is a super-2 number, since 2×203133201123² (a number of 23 digits) contains 22 as substring.

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 203133201123.

It is not an unprimeable number, because it can be changed into a prime (203133201121) 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 15 ways as a sum of consecutive naturals, for example, 805065 + ... + 1026837.

It is an arithmetic number, because the mean of its divisors is an integer number (17019823856).

Almost surely, 2^203133201123 is an apocalyptic number.

203133201123 is a deficient number, since it is larger than the sum of its proper divisors (69183980573).

203133201123 is a wasteful number, since it uses less digits than its factorization.

203133201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223434.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203133201123 its reverse (321102331302), we get a palindrome (524235532425).

The spelling of 203133201123 in words is "two hundred three billion, one hundred thirty-three million, two hundred one thousand, one hundred twenty-three".