242012123219 has 2 divisors, whose sum is σ = 242012123220. Its totient is φ = 242012123218.

The previous prime is 242012123209. The next prime is 242012123251. The reversal of 242012123219 is 912321210242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242012123219 - 2²⁸ = 241743687763 is a prime.

It is a super-2 number, since 2×242012123219² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242012123191 and 242012123200.

It is not a weakly prime, because it can be changed into another prime (242012123209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121006061609 + 121006061610.

It is an arithmetic number, because the mean of its divisors is an integer number (121006061610).

Almost surely, 2^242012123219 is an apocalyptic number.

242012123219 is a deficient number, since it is larger than the sum of its proper divisors (1).

242012123219 is an equidigital number, since it uses as much as digits as its factorization.

242012123219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 242012123219 in words is "two hundred forty-two billion, twelve million, one hundred twenty-three thousand, two hundred nineteen".