242421045047 has 2 divisors, whose sum is σ = 242421045048. Its totient is φ = 242421045046.

The previous prime is 242421045019. The next prime is 242421045091. The reversal of 242421045047 is 740540124242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242421045047 - 2²² = 242416850743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242421044998 and 242421045016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242421015047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121210522523 + 121210522524.

It is an arithmetic number, because the mean of its divisors is an integer number (121210522524).

Almost surely, 2^242421045047 is an apocalyptic number.

242421045047 is a deficient number, since it is larger than the sum of its proper divisors (1).

242421045047 is an equidigital number, since it uses as much as digits as its factorization.

242421045047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 35.

Adding to 242421045047 its reverse (740540124242), we get a palindrome (982961169289).

The spelling of 242421045047 in words is "two hundred forty-two billion, four hundred twenty-one million, forty-five thousand, forty-seven".