123021130311203 has 2 divisors, whose sum is σ = 123021130311204. Its totient is φ = 123021130311202.

The previous prime is 123021130311199. The next prime is 123021130311223. The reversal of 123021130311203 is 302113031120321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123021130311203 - 2² = 123021130311199 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (123021130311223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510565155601 + 61510565155602.

It is an arithmetic number, because the mean of its divisors is an integer number (61510565155602).

Almost surely, 2^{123021130311203} is an apocalyptic number.

123021130311203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123021130311203 is an equidigital number, since it uses as much as digits as its factorization.

123021130311203 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 23.

Adding to 123021130311203 its reverse (302113031120321), we get a palindrome (425134161431524).

The spelling of 123021130311203 in words is "one hundred twenty-three trillion, twenty-one billion, one hundred thirty million, three hundred eleven thousand, two hundred three".