203124133121 has 32 divisors (see below), whose sum is σ = 260095868928. Its totient is φ = 154304377920.

The previous prime is 203124133099. The next prime is 203124133129. The reversal of 203124133121 is 121331421302.

It is not a de Polignac number, because 203124133121 - 2¹⁴ = 203124116737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203124133129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74786 + ... + 641748.

It is an arithmetic number, because the mean of its divisors is an integer number (8127995904).

Almost surely, 2^203124133121 is an apocalyptic number.

It is an amenable number.

203124133121 is a deficient number, since it is larger than the sum of its proper divisors (56971735807).

203124133121 is a wasteful number, since it uses less digits than its factorization.

203124133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567141.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 203124133121 its reverse (121331421302), we get a palindrome (324455554423).

The spelling of 203124133121 in words is "two hundred three billion, one hundred twenty-four million, one hundred thirty-three thousand, one hundred twenty-one".