102002213320321 has 4 divisors (see below), whose sum is σ = 108002343515652. Its totient is φ = 96002083124992.

The previous prime is 102002213320279. The next prime is 102002213320331. The reversal of 102002213320321 is 123023312200201.

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 59707533514225 + 42294679806096 = 7727065^2 + 6503436^2 .

It is a cyclic number.

It is not a de Polignac number, because 102002213320321 - 2¹⁵ = 102002213287553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102002213320292 and 102002213320301.

It is not an unprimeable number, because it can be changed into a prime (102002213320331) 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, 3000065097640 + ... + 3000065097673.

It is an arithmetic number, because the mean of its divisors is an integer number (27000585878913).

Almost surely, 2^{102002213320321} is an apocalyptic number.

It is an amenable number.

102002213320321 is a deficient number, since it is larger than the sum of its proper divisors (6000130195331).

102002213320321 is an equidigital number, since it uses as much as digits as its factorization.

102002213320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000130195330.

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

Adding to 102002213320321 its reverse (123023312200201), we get a palindrome (225025525520522).

The spelling of 102002213320321 in words is "one hundred two trillion, two billion, two hundred thirteen million, three hundred twenty thousand, three hundred twenty-one".