102002013321 has 24 divisors (see below), whose sum is σ = 147291693120. Its totient is φ = 62760874176.

The previous prime is 102002013307. The next prime is 102002013343. The reversal of 102002013321 is 123310200201.

It is not a de Polignac number, because 102002013321 - 2⁶ = 102002013257 is a prime.

It is a super-2 number, since 2×102002013321² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102002013321.

It is not an unprimeable number, because it can be changed into a prime (102002013301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4773900 + ... + 4795218.

It is an arithmetic number, because the mean of its divisors is an integer number (6137153880).

Almost surely, 2^102002013321 is an apocalyptic number.

It is an amenable number.

102002013321 is a deficient number, since it is larger than the sum of its proper divisors (45289679799).

102002013321 is a wasteful number, since it uses less digits than its factorization.

102002013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30785 (or 30772 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102002013321 its reverse (123310200201), we get a palindrome (225312213522).

The spelling of 102002013321 in words is "one hundred two billion, two million, thirteen thousand, three hundred twenty-one".