242347220047 has 2 divisors, whose sum is σ = 242347220048. Its totient is φ = 242347220046.

The previous prime is 242347219951. The next prime is 242347220051. The reversal of 242347220047 is 740022743242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242347220047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242347219988 and 242347220015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242347220147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121173610023 + 121173610024.

It is an arithmetic number, because the mean of its divisors is an integer number (121173610024).

Almost surely, 2^242347220047 is an apocalyptic number.

242347220047 is a deficient number, since it is larger than the sum of its proper divisors (1).

242347220047 is an equidigital number, since it uses as much as digits as its factorization.

242347220047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 37.

Adding to 242347220047 its reverse (740022743242), we get a palindrome (982369963289).

The spelling of 242347220047 in words is "two hundred forty-two billion, three hundred forty-seven million, two hundred twenty thousand, forty-seven".