243122056147 has 2 divisors, whose sum is σ = 243122056148. Its totient is φ = 243122056146.

The previous prime is 243122056141. The next prime is 243122056153. The reversal of 243122056147 is 741650221342.

It is a balanced prime because it is at equal distance from previous prime (243122056141) and next prime (243122056153).

It is a cyclic number.

It is not a de Polignac number, because 243122056147 - 2²³ = 243113667539 is a prime.

It is not a weakly prime, because it can be changed into another prime (243122056141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121561028073 + 121561028074.

It is an arithmetic number, because the mean of its divisors is an integer number (121561028074).

Almost surely, 2^243122056147 is an apocalyptic number.

243122056147 is a deficient number, since it is larger than the sum of its proper divisors (1).

243122056147 is an equidigital number, since it uses as much as digits as its factorization.

243122056147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 243122056147 its reverse (741650221342), we get a palindrome (984772277489).

The spelling of 243122056147 in words is "two hundred forty-three billion, one hundred twenty-two million, fifty-six thousand, one hundred forty-seven".