131212213020200 has 96 divisors (see below), whose sum is σ = 328543060674360. Its totient is φ = 48446426419200.

The previous prime is 131212213020193. The next prime is 131212213020293. The reversal of 131212213020200 is 2020312212131.

It can be written as a sum of positive squares in 12 ways, for example, as 4408983658564 + 126803229361636 = 2099758^2 + 11260694^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112052132 + ... + 113217068.

Almost surely, 2^{131212213020200} is an apocalyptic number.

131212213020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131212213020200 is an abundant number, since it is smaller than the sum of its proper divisors (197330847654160).

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

131212213020200 is a wasteful number, since it uses less digits than its factorization.

131212213020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208287 (or 1208278 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131212213020200 its reverse (2020312212131), we get a palindrome (133232525232331).

The spelling of 131212213020200 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thirteen million, twenty thousand, two hundred".