131212343212311 has 16 divisors (see below), whose sum is σ = 175009757376384. Its totient is φ = 87444916239264.

The previous prime is 131212343212231. The next prime is 131212343212373. The reversal of 131212343212311 is 113212343212131.

It is a de Polignac number, because none of the positive numbers 2^k-131212343212311 is a prime.

It is a super-2 number, since 2×131212343212311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212343212211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133515016 + ... + 134494178.

It is an arithmetic number, because the mean of its divisors is an integer number (10938109836024).

Almost surely, 2^{131212343212311} is an apocalyptic number.

131212343212311 is a deficient number, since it is larger than the sum of its proper divisors (43797414164073).

131212343212311 is a wasteful number, since it uses less digits than its factorization.

131212343212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994430.

The product of its digits is 5184, while the sum is 30.

Adding to 131212343212311 its reverse (113212343212131), we get a palindrome (244424686424442).

The spelling of 131212343212311 in words is "one hundred thirty-one trillion, two hundred twelve billion, three hundred forty-three million, two hundred twelve thousand, three hundred eleven".