123122222329 has 2 divisors, whose sum is σ = 123122222330. Its totient is φ = 123122222328.

The previous prime is 123122222299. The next prime is 123122222387. The reversal of 123122222329 is 923222221321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82269727929 + 40852494400 = 286827^2 + 202120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123122222329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123122222329.

It is not a weakly prime, because it can be changed into another prime (123122222129) 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, 61561111164 + 61561111165.

It is an arithmetic number, because the mean of its divisors is an integer number (61561111165).

Almost surely, 2^123122222329 is an apocalyptic number.

It is an amenable number.

123122222329 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122222329 is an equidigital number, since it uses as much as digits as its factorization.

123122222329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The spelling of 123122222329 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred twenty-nine".