242347219951 has 2 divisors, whose sum is σ = 242347219952. Its totient is φ = 242347219950.

The previous prime is 242347219949. The next prime is 242347220047. The reversal of 242347219951 is 159912743242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242347219951 - 2¹ = 242347219949 is a prime.

Together with 242347219949, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 242347219895 and 242347219904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242347219901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121173609975 + 121173609976.

It is an arithmetic number, because the mean of its divisors is an integer number (121173609976).

Almost surely, 2^242347219951 is an apocalyptic number.

242347219951 is a deficient number, since it is larger than the sum of its proper divisors (1).

242347219951 is an equidigital number, since it uses as much as digits as its factorization.

242347219951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 242347219951 in words is "two hundred forty-two billion, three hundred forty-seven million, two hundred nineteen thousand, nine hundred fifty-one".