203131212132 has 24 divisors (see below), whose sum is σ = 498918767200. Its totient is φ = 64146698496.

The previous prime is 203131212107. The next prime is 203131212181. The reversal of 203131212132 is 231212131302.

It is a junction number, because it is equal to n+sod(n) for n = 203131212099 and 203131212108.

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, 445462957 + ... + 445463412.

Almost surely, 2^203131212132 is an apocalyptic number.

It is an amenable number.

203131212132 is an abundant number, since it is smaller than the sum of its proper divisors (295787555068).

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

203131212132 is a wasteful number, since it uses less digits than its factorization.

203131212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890926395 (or 890926393 counting only the distinct ones).

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

Adding to 203131212132 its reverse (231212131302), we get a palindrome (434343343434).

The spelling of 203131212132 in words is "two hundred three billion, one hundred thirty-one million, two hundred twelve thousand, one hundred thirty-two".