131211211220343 has 12 divisors (see below), whose sum is σ = 190425538772248. Its totient is φ = 87059571424560.

The previous prime is 131211211220329. The next prime is 131211211220351. The reversal of 131211211220343 is 343022112112131.

131211211220343 is a `hidden beast` number, since 1 + 31 + 211 + 211 + 2 + 203 + 4 + 3 = 666.

It is not a de Polignac number, because 131211211220343 - 2²¹ = 131211209123191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211211220393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34547447080 + ... + 34547450877.

Almost surely, 2^{131211211220343} is an apocalyptic number.

131211211220343 is a deficient number, since it is larger than the sum of its proper divisors (59214327551905).

131211211220343 is a wasteful number, since it uses less digits than its factorization.

131211211220343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69094898174 (or 69094898171 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 131211211220343 its reverse (343022112112131), we get a palindrome (474233323332474).

The spelling of 131211211220343 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, three hundred forty-three".