243101189131 has 2 divisors, whose sum is σ = 243101189132. Its totient is φ = 243101189130.

The previous prime is 243101189129. The next prime is 243101189171. The reversal of 243101189131 is 131981101342.

It is a happy number.

243101189131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243101189131 - 2¹ = 243101189129 is a prime.

It is a super-2 number, since 2×243101189131² (a number of 24 digits) contains 22 as substring.

Together with 243101189129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (243101189171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121550594565 + 121550594566.

It is an arithmetic number, because the mean of its divisors is an integer number (121550594566).

Almost surely, 2^243101189131 is an apocalyptic number.

243101189131 is a deficient number, since it is larger than the sum of its proper divisors (1).

243101189131 is an equidigital number, since it uses as much as digits as its factorization.

243101189131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 243101189131 in words is "two hundred forty-three billion, one hundred one million, one hundred eighty-nine thousand, one hundred thirty-one".