131211210330243 has 12 divisors (see below), whose sum is σ = 189528113026200. Its totient is φ = 87473766735936.

The previous prime is 131211210330217. The next prime is 131211210330253. The reversal of 131211210330243 is 342033012112131.

131211210330243 is a `hidden beast` number, since 1 + 3 + 1 + 211 + 2 + 103 + 302 + 43 = 666.

It is not a de Polignac number, because 131211210330243 - 2⁸ = 131211210329987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131211210330203) 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, 28890246 + ... + 33122027.

It is an arithmetic number, because the mean of its divisors is an integer number (15794009418850).

Almost surely, 2^{131211210330243} is an apocalyptic number.

131211210330243 is a deficient number, since it is larger than the sum of its proper divisors (58316902695957).

131211210330243 is a wasteful number, since it uses less digits than its factorization.

131211210330243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62247378 (or 62247375 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 131211210330243 its reverse (342033012112131), we get a palindrome (473244222442374).

The spelling of 131211210330243 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred ten million, three hundred thirty thousand, two hundred forty-three".