1002321000013 has 4 divisors (see below), whose sum is σ = 1002376039420. Its totient is φ = 1002265960608.

The previous prime is 1002320999963. The next prime is 1002321000029. The reversal of 1002321000013 is 3100001232001.

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 355200504169 + 647120495844 = 595987^2 + 804438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002321000013 - 2¹³ = 1002320991821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002320999957 and 1002321000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002321000073) 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, 27492378 + ... + 27528811.

It is an arithmetic number, because the mean of its divisors is an integer number (250594009855).

Almost surely, 2^{1002321000013} is an apocalyptic number.

It is an amenable number.

1002321000013 is a deficient number, since it is larger than the sum of its proper divisors (55039407).

1002321000013 is an equidigital number, since it uses as much as digits as its factorization.

1002321000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55039406.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1002321000013 its reverse (3100001232001), we get a palindrome (4102322232014).

The spelling of 1002321000013 in words is "one trillion, two billion, three hundred twenty-one million, thirteen", and thus it is an aban number.