123020320303 has 2 divisors, whose sum is σ = 123020320304. Its totient is φ = 123020320302.

The previous prime is 123020320301. The next prime is 123020320321. The reversal of 123020320303 is 303023020321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123020320303 - 2¹ = 123020320301 is a prime.

Together with 123020320301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123020320301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510160151 + 61510160152.

It is an arithmetic number, because the mean of its divisors is an integer number (61510160152).

Almost surely, 2^123020320303 is an apocalyptic number.

123020320303 is a deficient number, since it is larger than the sum of its proper divisors (1).

123020320303 is an equidigital number, since it uses as much as digits as its factorization.

123020320303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 123020320303 its reverse (303023020321), we get a palindrome (426043340624).

The spelling of 123020320303 in words is "one hundred twenty-three billion, twenty million, three hundred twenty thousand, three hundred three".