131212131320210 has 8 divisors (see below), whose sum is σ = 236181836376396. Its totient is φ = 52484852528080.

The previous prime is 131212131320197. The next prime is 131212131320251. The reversal of 131212131320210 is 12023131212131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114739467145801 + 16472664174409 = 10711651^2 + 4058653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6560606566001 + ... + 6560606566020.

Almost surely, 2^{131212131320210} is an apocalyptic number.

131212131320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131212131320210 is a deficient number, since it is larger than the sum of its proper divisors (104969705056186).

131212131320210 is a wasteful number, since it uses less digits than its factorization.

131212131320210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13121213132028.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 131212131320210 its reverse (12023131212131), we get a palindrome (143235262532341).

The spelling of 131212131320210 in words is "one hundred thirty-one trillion, two hundred twelve billion, one hundred thirty-one million, three hundred twenty thousand, two hundred ten".