52131031212 has 48 divisors (see below), whose sum is σ = 131952153312. Its totient is φ = 15923228160.

The previous prime is 52131031187. The next prime is 52131031217. The reversal of 52131031212 is 21213013125.

It is not an unprimeable number, because it can be changed into a prime (52131031217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1198239 + ... + 1240982.

It is an arithmetic number, because the mean of its divisors is an integer number (2749003194).

Almost surely, 2^52131031212 is an apocalyptic number.

52131031212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52131031212 is an abundant number, since it is smaller than the sum of its proper divisors (79821122100).

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

52131031212 is a wasteful number, since it uses less digits than its factorization.

52131031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439378 (or 2439376 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 52131031212 its reverse (21213013125), we get a palindrome (73344044337).

The spelling of 52131031212 in words is "fifty-two billion, one hundred thirty-one million, thirty-one thousand, two hundred twelve".