243410400191131 has 2 divisors, whose sum is σ = 243410400191132. Its totient is φ = 243410400191130.

The previous prime is 243410400191113. The next prime is 243410400191159. The reversal of 243410400191131 is 131191004014342.

Together with previous prime (243410400191113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243410400191131 - 2¹⁵ = 243410400158363 is a prime.

It is a super-2 number, since 2×243410400191131² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243410400191731) by changing a digit.

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 as a sum of consecutive naturals, namely, 121705200095565 + 121705200095566.

It is an arithmetic number, because the mean of its divisors is an integer number (121705200095566).

Almost surely, 2^{243410400191131} is an apocalyptic number.

243410400191131 is a deficient number, since it is larger than the sum of its proper divisors (1).

243410400191131 is an equidigital number, since it uses as much as digits as its factorization.

243410400191131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 243410400191131 in words is "two hundred forty-three trillion, four hundred ten billion, four hundred million, one hundred ninety-one thousand, one hundred thirty-one".