123020320193 has 2 divisors, whose sum is σ = 123020320194. Its totient is φ = 123020320192.

The previous prime is 123020320169. The next prime is 123020320301. The reversal of 123020320193 is 391023020321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85882405249 + 37137914944 = 293057^2 + 192712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123020320193 is a prime.

It is not a weakly prime, because it can be changed into another prime (123020320153) 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, 61510160096 + 61510160097.

It is an arithmetic number, because the mean of its divisors is an integer number (61510160097).

Almost surely, 2^123020320193 is an apocalyptic number.

It is an amenable number.

123020320193 is a deficient number, since it is larger than the sum of its proper divisors (1).

123020320193 is an equidigital number, since it uses as much as digits as its factorization.

123020320193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 123020320193 in words is "one hundred twenty-three billion, twenty million, three hundred twenty thousand, one hundred ninety-three".