203312023230 has 64 divisors (see below), whose sum is σ = 497492928000. Its totient is φ = 53157476736.

The previous prime is 203312023157. The next prime is 203312023247. The reversal of 203312023230 is 32320213302.

It is a junction number, because it is equal to n+sod(n) for n = 203312023197 and 203312023206.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2340759 + ... + 2426061.

It is an arithmetic number, because the mean of its divisors is an integer number (7773327000).

Almost surely, 2^203312023230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203312023230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248746464000).

203312023230 is an abundant number, since it is smaller than the sum of its proper divisors (294180904770).

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

203312023230 is a wasteful number, since it uses less digits than its factorization.

203312023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86865.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 203312023230 its reverse (32320213302), we get a palindrome (235632236532).

The spelling of 203312023230 in words is "two hundred three billion, three hundred twelve million, twenty-three thousand, two hundred thirty".