243130509967 has 2 divisors, whose sum is σ = 243130509968. Its totient is φ = 243130509966.

The previous prime is 243130509949. The next prime is 243130510033. The reversal of 243130509967 is 769905031342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243130509967 is a prime.

It is a super-2 number, since 2×243130509967² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243130509967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243130509907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121565254983 + 121565254984.

It is an arithmetic number, because the mean of its divisors is an integer number (121565254984).

Almost surely, 2^243130509967 is an apocalyptic number.

243130509967 is a deficient number, since it is larger than the sum of its proper divisors (1).

243130509967 is an equidigital number, since it uses as much as digits as its factorization.

243130509967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 243130509967 in words is "two hundred forty-three billion, one hundred thirty million, five hundred nine thousand, nine hundred sixty-seven".