1302223102321 has 4 divisors (see below), whose sum is σ = 1333984641444. Its totient is φ = 1270461563200.

The previous prime is 1302223102277. The next prime is 1302223102331. The reversal of 1302223102321 is 1232013222031.

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 46783527025 + 1255439575296 = 216295^2 + 1120464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302223102321 - 2¹⁷ = 1302222971249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302223102292 and 1302223102301.

It is not an unprimeable number, because it can be changed into a prime (1302223102331) 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, 15880769500 + ... + 15880769581.

It is an arithmetic number, because the mean of its divisors is an integer number (333496160361).

Almost surely, 2^{1302223102321} is an apocalyptic number.

It is an amenable number.

1302223102321 is a deficient number, since it is larger than the sum of its proper divisors (31761539123).

1302223102321 is an equidigital number, since it uses as much as digits as its factorization.

1302223102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31761539122.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1302223102321 its reverse (1232013222031), we get a palindrome (2534236324352).

The spelling of 1302223102321 in words is "one trillion, three hundred two billion, two hundred twenty-three million, one hundred two thousand, three hundred twenty-one".