123022303021 has 2 divisors, whose sum is σ = 123022303022. Its totient is φ = 123022303020.

The previous prime is 123022302967. The next prime is 123022303039. The reversal of 123022303021 is 120303220321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103919193225 + 19103109796 = 322365^2 + 138214^2 .

It is a cyclic number.

It is not a de Polignac number, because 123022303021 - 2⁹ = 123022302509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123022303021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123022303091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511151510 + 61511151511.

It is an arithmetic number, because the mean of its divisors is an integer number (61511151511).

Almost surely, 2^123022303021 is an apocalyptic number.

It is an amenable number.

123022303021 is a deficient number, since it is larger than the sum of its proper divisors (1).

123022303021 is an equidigital number, since it uses as much as digits as its factorization.

123022303021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123022303021 its reverse (120303220321), we get a palindrome (243325523342).

The spelling of 123022303021 in words is "one hundred twenty-three billion, twenty-two million, three hundred three thousand, twenty-one".