123121130300321 has 4 divisors (see below), whose sum is σ = 124060986256944. Its totient is φ = 122181274343700.

The previous prime is 123121130300281. The next prime is 123121130300407. The reversal of 123121130300321 is 123003031121321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123121130300321 - 2⁶ = 123121130300257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123121130380321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469927978115 + ... + 469927978376.

It is an arithmetic number, because the mean of its divisors is an integer number (31015246564236).

Almost surely, 2^{123121130300321} is an apocalyptic number.

It is an amenable number.

123121130300321 is a deficient number, since it is larger than the sum of its proper divisors (939855956623).

123121130300321 is an equidigital number, since it uses as much as digits as its factorization.

123121130300321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939855956622.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 123121130300321 its reverse (123003031121321), we get a palindrome (246124161421642).

The spelling of 123121130300321 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, one hundred thirty million, three hundred thousand, three hundred twenty-one".