203132123112 has 32 divisors (see below), whose sum is σ = 507910524480. Its totient is φ = 67700012160.

The previous prime is 203132123093. The next prime is 203132123113. The reversal of 203132123112 is 211321231302.

It is not an unprimeable number, because it can be changed into a prime (203132123113) 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 7 ways as a sum of consecutive naturals, for example, 512628 + ... + 817955.

It is an arithmetic number, because the mean of its divisors is an integer number (15872203890).

Almost surely, 2^203132123112 is an apocalyptic number.

It is an amenable number.

203132123112 is an abundant number, since it is smaller than the sum of its proper divisors (304778401368).

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

203132123112 is a wasteful number, since it uses less digits than its factorization.

203132123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336953 (or 1336949 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 203132123112 its reverse (211321231302), we get a palindrome (414453354414).

The spelling of 203132123112 in words is "two hundred three billion, one hundred thirty-two million, one hundred twenty-three thousand, one hundred twelve".