242142303397 has 2 divisors, whose sum is σ = 242142303398. Its totient is φ = 242142303396.

The previous prime is 242142303391. The next prime is 242142303409. The reversal of 242142303397 is 793303241242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149532249636 + 92610053761 = 386694^2 + 304319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242142303397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242142303391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121071151698 + 121071151699.

It is an arithmetic number, because the mean of its divisors is an integer number (121071151699).

Almost surely, 2^242142303397 is an apocalyptic number.

It is an amenable number.

242142303397 is a deficient number, since it is larger than the sum of its proper divisors (1).

242142303397 is an equidigital number, since it uses as much as digits as its factorization.

242142303397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 242142303397 in words is "two hundred forty-two billion, one hundred forty-two million, three hundred three thousand, three hundred ninety-seven".