1323123300121 has 24 divisors (see below), whose sum is σ = 1557291445920. Its totient is φ = 1120767766272.

The previous prime is 1323123300097. The next prime is 1323123300143. The reversal of 1323123300121 is 1210033213231.

It is a de Polignac number, because none of the positive numbers 2^k-1323123300121 is a prime.

It is a super-2 number, since 2×1323123300121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1323123300092 and 1323123300101.

It is not an unprimeable number, because it can be changed into a prime (1323123300181) 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 in 23 ways as a sum of consecutive naturals, for example, 3042510 + ... + 3450088.

It is an arithmetic number, because the mean of its divisors is an integer number (64887143580).

Almost surely, 2^{1323123300121} is an apocalyptic number.

It is an amenable number.

1323123300121 is a deficient number, since it is larger than the sum of its proper divisors (234168145799).

1323123300121 is an equidigital number, since it uses as much as digits as its factorization.

1323123300121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408373 (or 408366 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1323123300121 its reverse (1210033213231), we get a palindrome (2533156513352).

The spelling of 1323123300121 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-three million, three hundred thousand, one hundred twenty-one".