1230323221121 has 4 divisors (see below), whose sum is σ = 1230346334532. Its totient is φ = 1230300107712.

The previous prime is 1230323221091. The next prime is 1230323221123. The reversal of 1230323221121 is 1211223230321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767700154225 + 462623066896 = 876185^2 + 680164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230323221121 - 2²² = 1230319026817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230323221123) 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 in 3 ways as a sum of consecutive naturals, for example, 11476676 + ... + 11583381.

It is an arithmetic number, because the mean of its divisors is an integer number (307586583633).

Almost surely, 2^{1230323221121} is an apocalyptic number.

It is an amenable number.

1230323221121 is a deficient number, since it is larger than the sum of its proper divisors (23113411).

1230323221121 is an equidigital number, since it uses as much as digits as its factorization.

1230323221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23113410.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1230323221121 its reverse (1211223230321), we get a palindrome (2441546451442).

The spelling of 1230323221121 in words is "one trillion, two hundred thirty billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty-one".