242151310411397 has 2 divisors, whose sum is σ = 242151310411398. Its totient is φ = 242151310411396.

The previous prime is 242151310411393. The next prime is 242151310411433. The reversal of 242151310411397 is 793114013151242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177142018299841 + 65009292111556 = 13309471^2 + 8062834^2 .

It is a cyclic number.

It is not a de Polignac number, because 242151310411397 - 2² = 242151310411393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242151310411393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121075655205698 + 121075655205699.

It is an arithmetic number, because the mean of its divisors is an integer number (121075655205699).

Almost surely, 2^{242151310411397} is an apocalyptic number.

It is an amenable number.

242151310411397 is a deficient number, since it is larger than the sum of its proper divisors (1).

242151310411397 is an equidigital number, since it uses as much as digits as its factorization.

242151310411397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 242151310411397 in words is "two hundred forty-two trillion, one hundred fifty-one billion, three hundred ten million, four hundred eleven thousand, three hundred ninety-seven".