13231204212 has 12 divisors (see below), whose sum is σ = 30872809856. Its totient is φ = 4410401400.

The previous prime is 13231204157. The next prime is 13231204213. The reversal of 13231204212 is 21240213231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231204213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551300164 + ... + 551300187.

Almost surely, 2^13231204212 is an apocalyptic number.

13231204212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13231204212 is an abundant number, since it is smaller than the sum of its proper divisors (17641605644).

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

13231204212 is a wasteful number, since it uses less digits than its factorization.

13231204212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102600358 (or 1102600356 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13231204212 its reverse (21240213231), we get a palindrome (34471417443).

The spelling of 13231204212 in words is "thirteen billion, two hundred thirty-one million, two hundred four thousand, two hundred twelve".