1023230203321 has 4 divisors (see below), whose sum is σ = 1027621749492. Its totient is φ = 1018838657152.

The previous prime is 1023230203301. The next prime is 1023230203343. The reversal of 1023230203321 is 1233020323201.

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 72729999225 + 950500204096 = 269685^2 + 974936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023230203321 - 2¹⁹ = 1023229679033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023230203292 and 1023230203301.

It is not an unprimeable number, because it can be changed into a prime (1023230203301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195772736 + ... + 2195773201.

It is an arithmetic number, because the mean of its divisors is an integer number (256905437373).

Almost surely, 2^{1023230203321} is an apocalyptic number.

It is an amenable number.

1023230203321 is a deficient number, since it is larger than the sum of its proper divisors (4391546171).

1023230203321 is an equidigital number, since it uses as much as digits as its factorization.

1023230203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391546170.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1023230203321 its reverse (1233020323201), we get a palindrome (2256250526522).

The spelling of 1023230203321 in words is "one trillion, twenty-three billion, two hundred thirty million, two hundred three thousand, three hundred twenty-one".