102002130321 has 96 divisors (see below), whose sum is σ = 185277214080. Its totient is φ = 49269233664.

The previous prime is 102002130319. The next prime is 102002130323. The reversal of 102002130321 is 123031200201.

It is an interprime number because it is at equal distance from previous prime (102002130319) and next prime (102002130323).

It is not a de Polignac number, because 102002130321 - 2¹ = 102002130319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102002130321.

It is not an unprimeable number, because it can be changed into a prime (102002130323) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1159590 + ... + 1244448.

It is an arithmetic number, because the mean of its divisors is an integer number (1929970980).

Almost surely, 2^102002130321 is an apocalyptic number.

It is an amenable number.

102002130321 is a deficient number, since it is larger than the sum of its proper divisors (83275083759).

102002130321 is a wasteful number, since it uses less digits than its factorization.

102002130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84943 (or 84936 counting only the distinct ones).

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

Adding to 102002130321 its reverse (123031200201), we get a palindrome (225033330522).

The spelling of 102002130321 in words is "one hundred two billion, two million, one hundred thirty thousand, three hundred twenty-one".