1202023310321 has 2 divisors, whose sum is σ = 1202023310322. Its totient is φ = 1202023310320.

The previous prime is 1202023310261. The next prime is 1202023310347. The reversal of 1202023310321 is 1230133202021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648450109696 + 553573200625 = 805264^2 + 744025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202023310321 - 2³⁴ = 1184843441137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202023310293 and 1202023310302.

It is not a weakly prime, because it can be changed into another prime (1202023310821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601011655160 + 601011655161.

It is an arithmetic number, because the mean of its divisors is an integer number (601011655161).

Almost surely, 2^{1202023310321} is an apocalyptic number.

It is an amenable number.

1202023310321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202023310321 is an equidigital number, since it uses as much as digits as its factorization.

1202023310321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1202023310321 its reverse (1230133202021), we get a palindrome (2432156512342).

The spelling of 1202023310321 in words is "one trillion, two hundred two billion, twenty-three million, three hundred ten thousand, three hundred twenty-one".