203123321324 has 48 divisors (see below), whose sum is σ = 457474246656. Its totient is φ = 76586083200.

The previous prime is 203123321257. The next prime is 203123321329. The reversal of 203123321324 is 423123321302.

It is a happy number.

It is a super-2 number, since 2×203123321324² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203123321293 and 203123321302.

It is not an unprimeable number, because it can be changed into a prime (203123321329) 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, 10627409 + ... + 10646504.

It is an arithmetic number, because the mean of its divisors is an integer number (9530713472).

Almost surely, 2^203123321324 is an apocalyptic number.

It is an amenable number.

203123321324 is an abundant number, since it is smaller than the sum of its proper divisors (254350925332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203123321324 is a wasteful number, since it uses less digits than its factorization.

203123321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21273966 (or 21273964 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 203123321324 its reverse (423123321302), we get a palindrome (626246642626).

The spelling of 203123321324 in words is "two hundred three billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred twenty-four".