122423430643 has 2 divisors, whose sum is σ = 122423430644. Its totient is φ = 122423430642.

The previous prime is 122423430629. The next prime is 122423430677. The reversal of 122423430643 is 346034324221.

It is an a-pointer prime, because the next prime (122423430677) can be obtained adding 122423430643 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122423430643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122423430599 and 122423430608.

It is not a weakly prime, because it can be changed into another prime (122423430043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61211715321 + 61211715322.

It is an arithmetic number, because the mean of its divisors is an integer number (61211715322).

Almost surely, 2^122423430643 is an apocalyptic number.

122423430643 is a deficient number, since it is larger than the sum of its proper divisors (1).

122423430643 is an equidigital number, since it uses as much as digits as its factorization.

122423430643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 122423430643 its reverse (346034324221), we get a palindrome (468457754864).

The spelling of 122423430643 in words is "one hundred twenty-two billion, four hundred twenty-three million, four hundred thirty thousand, six hundred forty-three".