203123012232 has 32 divisors (see below), whose sum is σ = 580351464000. Its totient is φ = 58035146304.

The previous prime is 203123012203. The next prime is 203123012243. The reversal of 203123012232 is 232210321302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 203123012199 and 203123012208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604532607 + ... + 604532942.

It is an arithmetic number, because the mean of its divisors is an integer number (18135983250).

Almost surely, 2^203123012232 is an apocalyptic number.

It is an amenable number.

203123012232 is an abundant number, since it is smaller than the sum of its proper divisors (377228451768).

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

203123012232 is a wasteful number, since it uses less digits than its factorization.

203123012232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209065565 (or 1209065561 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203123012232 its reverse (232210321302), we get a palindrome (435333333534).

The spelling of 203123012232 in words is "two hundred three billion, one hundred twenty-three million, twelve thousand, two hundred thirty-two".