203212323132 has 144 divisors (see below), whose sum is σ = 625269133440. Its totient is φ = 50773661568.

The previous prime is 203212323121. The next prime is 203212323133. The reversal of 203212323132 is 231323212302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212323133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 554358 + ... + 844829.

It is an arithmetic number, because the mean of its divisors is an integer number (4342146760).

Almost surely, 2^203212323132 is an apocalyptic number.

It is an amenable number.

203212323132 is an abundant number, since it is smaller than the sum of its proper divisors (422056810308).

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

203212323132 is a wasteful number, since it uses less digits than its factorization.

203212323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399240 (or 1399231 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 203212323132 its reverse (231323212302), we get a palindrome (434535535434).

The spelling of 203212323132 in words is "two hundred three billion, two hundred twelve million, three hundred twenty-three thousand, one hundred thirty-two".